Truth Is Objective Essay Example
Truth, like knowledge, is surprisingly difficult to define. We seem to rely on it almost every moment of every day and it's very "close" to us. Yet it's difficult to define because as soon as you think you have it pinned down, some case or counterexample immediately shows deficiencies. Ironically, every definition of truth that philosophers have developed falls prey to the question, "Is it true?"
Simply, we can define truth as: a statement about the way the world actually is. We'll look at various theories below that philosophers have considered but that's an adequate rough-and-ready definition to get us started. Coming up with a definition of truth falls under the discipline of epistemology or the study of knowledge though some philosophers categorize it as a study in metaphysics--the study of what is real.
In this essay, we'll look at some reasons why defining truth can be challenging. Truth seems like something we naturally comprehend and while intuition can help us a great deal in understanding what it is, surface definitions present us with unique problems and I’ll illustrate why. I'll then lay out some terms and concepts that will help us get a better handle on understanding what truth is. Next, we'll look at three main views of truth. The coherence theory describes truth in terms of interconnected belief. A belief is true if it is consistent with other beliefs we have. The correspondence theory describes truth in terms of a relation concepts or propositions have to the actual world. Finally postmodernism lays out a view of truth in terms of individual perspectives and community agreement. While this essay does not focus on practical issues like why a view of truth is important, I'll say a few words about that idea at the end and provide more resources for further reading.
I stated above that defining truth can be challenging. Let’s briefly look at why this is so by way of a seemingly simple example. Suppose you examine an apple and determine that it’s red, sweet, smooth and crunchy. You might claim this is what the apple is. Put another way, you've made truth claims about the apple and seemingly made statements about real properties of the apple. But immediate problems arise. Let's suppose your friend is color blind (this is unknown to you or her) and when she looks at the apple, she says that the apple is a dull greenish color. She also makes a truth claim about the color of the apple but it's different than your truth claim. What color is the apple?
Well, you might respond, that's an easy problem to solve. It's actually red because we've stipulated that your friend has an anomaly in her truth-gathering equipment (vision) and even though we may not know she has it, the fact that she does means her view of reality is incorrect. But now let’s suppose everyone is color blind and we all see "red" apples as green? We can make this objection even stronger by asking how we know that we all aren't in fact color blind in a way we don't understand and apples really aren't red after all. No one has access to the “real” color of the apple. Again, the response might be that that this is a knowledge problem, not a truth problem. The apple really is red but we all believe it’s green. But notice that the truth of the apple’s color has little role to play in what we believe. No one knows what the truth is and so it plays no role in our epistemology.
The challenge is that our view of truth is very closely tied to our perspective on what is true. This means that in the end, we may be able to come up with a reasonable definition of truth, but if we decide that no one can get to what is true (that is, know truth), what good is the definition? Even more problematic is that our perspective will even influence our ability to come up with a definition! These are no small concerns and we'll explore some responses below.
Before we get to definitions of truth, we need to define some terms used in those definitions which will make things a little easier to digest. Epistemologists (people who study truth, belief and knowledge) use the following concepts as the framework for their study of truth.
Propositions. A common technical definition of a proposition (credited to Peter van Inwagen) is "a non-linguistic bearer of truth value." A proposition is a representation of the world or a way the world could possibly be and propositions are either true or false. Propositions are different than sentences. Sentences are symbolic, linguistic representations of propositions. Okay, that's all very technical. What does it mean?
Let's take the sentence, "The moon has craters." This is an English sentence that supposedly states some fact about the world or reality (and specifically about the moon). Because it’s in English, we say it's "linguistic" or language-based. If we're going to get philosophical about it, we could describe its properties as having four words and 17 letters, it's in the English language written in 11 point font and it's black. I could write the same sentence like this:
The moon has craters.
This sentence has different properties from the first one above. This one still has the same number of words and letters and it's in English. But it is in 18 point font and is written in blue. Now let's take this sentence, "La luna tiene cráteres." This sentence has four words but 19 letters. It's written in 11 point font and is black but it's Spanish. What do all three sentences have in common? Well, they all express the same idea or meaning and we could say the same "truth." We could express the same idea in Swahili, semaphore, Morse code, or any other symbolic system that conveys meaning.
Notice that the symbols themselves are neither true nor false. The meaning the sentences represent is either true or false. Sentences are symbolic representations of something else—propositions. The common property true of all sentences that express the same truth is what philosophers call the propositional content of the sentences or "the proposition." Now we can better understand the idea behind "non-linguistic bearer of truth value." Propositions are non-linguistic because they aren't written or spoken in a language. They bear truth because they are the things that are true or false. This is what allows them to be expressed or "exemplified" in a variety of different symbolic systems like language-based sentences. When it comes to understanding truth, many philosophers believe propositions are at the center.
Belief. Beliefs are things (at least) people have. They don't exist outside the mind. Some philosophers say beliefs are "dispositional." That is, they incline a person to behave in a way as if the thing they believe is true. So a belief, simply, is a proposition that a person accepts as representing the way the world actually is. Beliefs can be about false propositions and thus be "wrong" because the person accepts them as true. This is a critical distinction. While a proposition has to be true or false, beliefs can be about true or false propositions even though a person always accepts them as being true.
Some philosophers attempt to define truth "mind-independently." That means, they want to come up with a definition that doesn't depend on whether humans can actually believe or know what is true. Truth is viewed as independent of our minds and they seek a definition of it that captures this. Other philosophers have developed theories that keep people at the center. That is, truth and belief are considered together and are inseparable. I will try to make the relevance of the "epistemic" vs. "independent" views of truth relevant below.
Knowledge. Knowledge is belief in a true proposition that a person is justified in holding as true. The conditions under which a person is justified is complicated and there are many theories about when the conditions are met. Theories of knowledge attempt to describe when a person is in a "right" cognitive relationship with true propositions. I describe some theories of knowledge and some of the challenges in understanding when a person knows in an article for Philosophy News called "What is Knowledge?"
The Coherence View of Truth
The main idea behind this view is that a belief is true if it "coheres" or is consistent with other things a person believes. For example, a fact a person believes, say "grass is green" is true if that belief is consistent with other things the person believes like the definition of green and whether grass exists and the like. It also depends on the interpretation of the main terms in those other beliefs. Suppose you’ve always lived in a region covered with snow and never saw grass or formed beliefs about this strange plant life. The claim "grass is green" would not cohere with other beliefs because you have no beliefs that include the concept "grass." The claim, "grass is green" would be nonsense because it contains a nonsensical term "grass." That is, you never formed a belief about grass so there’s nothing for this new belief to cohere with.
As you can see from the above description, coherence theories typically are described in terms of beliefs. This puts coherence theories in the "epistemic" view of truth camp noted above. This is because, coherence theorists claim, we can only ground a given belief on other things we believe. We cannot "stand outside" our own belief system to compare our beliefs with the actual world. If I believe Booth shot Lincoln, I can only determine if that belief is truth based on other things I believe like "Wikipedia provides accurate information" or "My professor knows history and communicates it well" or "Uncle John sure was a scoundrel".
These are other beliefs and serve as a basis for my original belief. Thus truth is essentially epistemic since any other model requires a type of access to the "real world" we simply can't have. As philosopher Donald Davidson describes the situation, "If coherence is a test of truth, there is a direct connection with epistemology, for we have reason to believe many of our beliefs cohere with many others, and in that case we have reason to believe many of our beliefs are true." (Davidson, )
The Correspondence Theory of Truth
Arguably the more widely-held view of truth (stemming from a broader rationalist tradition in philosophy), philosophers who argue for the correspondence theory hold that there is a world external to our beliefs that is somehow accessible to the human mind. More specifically, correspondence theorists hold that there are a set of "truth-bearing" representations (or propositions) about the world that align to or correspond with reality or states of affairs in the world. A state of affairs just is a particular way the world or reality is. When a proposition aligns to the world, the proposition is said to be true. Truth, on this view, is that correspondence relation.
Take this proposition: "The Seattle Seahawks won Super Bowl 48 in " The proposition is true if in fact the Seahawks did win super Bowl 48 in (they did) and false if they didn't.
Notice that on this view, propositions about reality are different from beliefs we may have of reality. We believe propositions--I believe that the moon has craters. What follows the "that" is meant to signify the proposition that a person believes. So truth on this view is when the proposition matches reality.
The correspondence theory only lays out the condition for truth in terms of propositions and the way the world actually is. This definition does not involve beliefs that people have. Propositions are true or false regardless of whether anyone believes them. Just think of a proposition as a way the world possibly could be: "The Seahawks won Super Bowl 48" or "The Seahawks lost Super Bowl 48" -- both propositions possibly are true. True propositions are those that correspond to what actually happened.
You'll notice that this definition does not include a belief component. That is, unlike the coherence theory, the correspondence theory describes truth in terms that are independent of beliefs humans may have. This has the distinct advantage of separating truth from the messy business of belief and knowledge but may warrant complaints of being impractical.
Postmodern thought covers a wide theoretical area but informs modern epistemology particularly when it comes to truth. Postmodern theories of truth are difficult to articulate in strict terms because postmodern theorists tend to eschew hard and fast definitions. But we can provide some insight here. Put in simple terms, postmodernists describe truth not as a relationship outside of the human mind that we can align belief to but as a product of belief. We never access reality because we can never get outside our own beliefs to do so. Our beliefs function as filters that keep reality (if such a thing exists) beyond us. Since we can never access reality, it does no good to describe knowledge or truth in terms of reality because there's nothing we can actually say about it that's meaningful. Truth then is constructed by what we perceive and ultimately believe.
I'm inclined to earmark the foundation of postmodern thought with the work of Immanuel Kant, specifically with his work The Critique of Pure Reason. In my view, Kant was at the gateway of postmodern thought. He wasn't a postmodernist himself but provided the framework for what later developed.
Kant makes a foundational distinction between the "objects" of subjective experience and the "objects" of "reality." He labels the former phenomena and that latter noumena. The noumena for Kant are things in themselves (ding an sich). These exist outside of and separate from the mind. This is what we might call "reality" or actual states of affairs similar to what we saw in the correspondence theory above. But for Kant, the noumena are entirely unknowable in and of themselves. However, the noumena give rise to the phenomena or are the occasion by which we come to know the phenomena.
The phenomena make up the world we know, the world "for us" (für uns). This is the world of rocks, trees, books, tables, and any other objects we access through the five senses. This is the world of our experience. This world, however, does not exist apart from our experience. It is essentially experiential. Kant expressed this idea as follows: the world as we know it is "phenomenally real but transcendentally ideal." That is objects that we believe exist in the world are a "real" part of our subjective experience but they do not exist apart from that subjective experience and don't transcend the ideas we have. The noumena are "transcendentally real" or they exist in and of themselves but are never experienced directly or even indirectly.
The noumena are given form and shape by what Kant described as categories of the mind and this 'ordering' gives rise to phenomenal objects. This is where it relates to truth: phenomenal objects are not analogues, copies, representations or any such thing of the noumena. The noumena gives rise to the phenomena but in no way resembles them. Scholars have spent countless hours trying to understand Kant on this point since it seems like the mind interacts with the noumena in some way. But Kant does seem to be clear that the mind never experiences the noumena directly and the phenomena in no way represents the noumena.
We can now see the beginnings of postmodern thought. If we understand the noumena as “reality” and the phenomena as the world we experience, we can see that we never get past our experience to reality itself. It's not like a photograph which represents a person and by seeing the photograph we can have some understanding of what the "real person" actually looks like. Rather (to use an admittedly clumsy example) it's like being in love. We can readily have the experience and we know the brain is involved but we have no idea how it works. By experiencing the euphoria of being in love, we learn nothing about how the brain works.
On this view then, what is truth? Abstractly we might say truth is found in the noumena since that's reality. But postmodernists have taken Kant's idea further and argued that since we can't say anything about the noumena, why bother with it at all? Kant didn’t provided a good reason to believe the noumena exists but seems to have asserted its existence because, after all, something was needed to give rise to the phenomena. Postmodernists just get rid of this extra baggage and focus solely on what we experience.
Perspective and Truth
Further, everyone's experience of the world is a bit different--we all have different life experiences, background beliefs, personalities and dispositions, and even genetics that shape our view of the world. This makes it impossible, say the postmodernists to declare an "absolute truth" about much of anything since our view of the world is a product of our individual perspective. Some say that our worldview makes up a set of lenses or a veil through which we interpret everything and we can't remove those lenses. Interpretation and perspective are key ideas in postmodern thought and are contrasted with "simple seeing" or a purely objective view of reality--something postmodernists reject as impossible.
We only have interconnected beliefs and for each individual, that's what truth is. We can see some similarities here to the coherence theory of truth with its web of interconnected and mutually supported beliefs. But where the coherence theory holds that coherence among beliefs gives us reason to hold that what we believe corresponds to some external reality, postmodernists reject that. In postmodernism there is nothing for our beliefs to correspond to or if there is, our beliefs never get beyond the limits of our minds to enable us to make any claims about that reality.
Postmodernism differs from radical subjectivism (truth is centered only in what an individual experiences) by allowing that there might be "community agreement" for some truth claims. The idea is that two or more people may be able to agree on a particular truth claim and form a shared agreement that a given proposition is true. To be clear, it's not true because they agree it maps or corresponds to reality. But since the group all agree that a given proposition or argument works in some practical way, or has explanatory power (seems to explain some particular thing), or has strong intuitive force for them, they can use this shared agreement to form a knowledge community.
When you think about it, this is how things tend to work. A scientist discovers something she takes to be true and writes a paper explaining why she thinks it's true. Other scientists read her paper, run their own experiments and either validate her claims or are unable to invalidate her claims. These scientists then declare the theory "valid" or "significant" or give it some other stamp of approval. In most cases, this does not mean the theory is immune from falsification or to being disproved--it's not absolute. It just means that the majority of the scientific community that have studied the theory agree that it’s true given what they currently understand. This shared agreement creates a communal "truth" for those scientists. This is what led Richard Rorty to state the oft-quoted phrase, "Truth is what my colleagues will let me get away with."
Philosophers are supposed to love wisdom and wisdom is more oriented towards the practical than the theoretical. This article has been largely about a theoretical view of truth so how do we apply it? Most people don't spend a whole lot of time thinking about what truth is but tend to get by in the world without that understanding. That's probably because the world seems to impose itself on us rather than being subject to some theory we might come up with about how it has to operate. We all need food, water and shelter, meaning, friendship, and some purpose that compels us to get out of bed in the morning. This is a kind of practical truth that is not subject to the fluidity of philosophical theory.
Even so, we all contend with truth claims on a daily basis. We have to make decisions about what matters. Maybe you're deeply concerned about politics and what politicians are claiming or what policy should be supported or overturned. Perhaps you care about which athlete should be traded or whether you should eat meat or support the goods produced by a large corporation. You may want to know if God exists and if so, which one. You probably care what your friends or loved ones are saying and whether you can count on them or invest in their relationship. In each of these cases, you will apply a theory of truth whether you realize it or not and so a little reflection on what you think about truth will be important.
Your view of truth will impact how you show up at work and impacts the decisions you make about how to raise your children or deal with a conflict. For example, suppose you're faced with a complex question at work about something you're responsible for. You need to decide whether to ship a product or do more testing. If you're a postmodernist, your worldview may cause you to be more tentative about the conclusions you're drawing about the product's readiness because you understand that your interpretation of the facts you have about the product may be clouded by your own background beliefs. Because of this, you may seek more input or seek more consensus before you move forward. You may find yourself silently scoffing at your boss who makes absolute decisions about the "right" way to move forward because you believe there is no "right" way to do much of anything. There's just each person's interpretation of what is right and whoever has the loudest voice or exerts the most force wins.
An engineer may disagree here. She may argue, as an example, that there is a "right" way to build an airplane and a lot of wrong ways and years of aviation history documents both. Here is an instance where the world imposes itself on us: airplanes built with wings and that follow specific rules of aerodynamics fly and machines that don't follow those "laws" don't. Further most of us would rather fly in airplanes built by engineers that have more of a correspondence view of truth. We want to believe that the engineers that built the plane we're in understand aerodynamics and built a plane that corresponds with the propositions that make up the laws of aerodynamics.
Your view of truth matters. You may be a correspondence theorist when it comes to airplanes but a postmodernist when it comes to ethics or politics. But why hold different views of truth for different aspects of your life? This is where a theory comes in. As you reflect on the problems posed by airplanes and ethics, the readiness of your product to be delivered to consumers and the readiness of your child to be loosed upon the world, about what makes you happy and about your responsibility to your fellow man, you will develop a theory of truth that will help you navigate these situations with more clarity and consistency.
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The terms “objectivity” and “subjectivity,” in their modern usage, generally relate to a perceiving subject (normally a person) and a perceived or unperceived object. The object is something that presumably exists independent of the subject’s perception of it. In other words, the object would be there, as it is, even if no subject perceived it. Hence, objectivity is typically associated with ideas such as reality, truth and reliability.
The perceiving subject can either perceive accurately or seem to perceive features of the object that are not in the object. For example, a perceiving subject suffering from jaundice could seem to perceive an object as yellow when the object is not actually yellow. Hence, the term “subjective” typically indicates the possibility of error.
The potential for discrepancies between features of the subject’s perceptual impressions and the real qualities of the perceived object generates philosophical questions. There are also philosophical questions regarding the nature of objective reality and the nature of our so-called subjective reality. Consequently, we have various uses of the terms “objective” and “subjective” and their cognates to express possible differences between objective reality and subjective impressions. Philosophers refer to perceptual impressions themselves as being subjective or objective. Consequent judgments are objective or subjective to varying degrees, and we divide reality into objective reality and subjective reality. Thus, it is important to distinguish the various uses of the terms “objective” and “subjective.”
Table of Contents
- Epistemological Issues
- Can We Know Objective Reality?
- Does Agreement Among Subjects Indicate Objective Knowledge?
- Primary and Secondary Qualities: Can We Know Primary Qualities?
- Skepticism Regarding Knowledge of Objective Reality
- Defending Objective Knowledge
- Is There No Escape From the Subjective?
- Metaphysical Issues
- Objectivity in Ethics
- Persons in Contrast to Objects
- Objectivism, Subjectivism and Non-Cognitivism
- Objectivist Theories
- Can We Know Moral Facts?
- Major Historical Philosophical Theories of Objective Reality
- References and Further Reading
Many philosophers would use the term “objective reality” to refer to anything that exists as it is independent of any conscious awareness of it (via perception, thought, etc.). Common mid-sized physical objects presumably apply, as do persons having subjective states. Subjective reality would then include anything depending upon some (broadly construed) conscious awareness of it to exist. Particular instances of colors and sounds (as they are perceived) are prime examples of things that exist only when there are appropriate conscious states. Particular instances of emotions (e.g., my present happiness) also seem to be a subjective reality, existing when one feels them, and ceasing to exist when one’s mood changes.
“Objective knowledge” can simply refer to knowledge of an objective reality. Subjective knowledge would then be knowledge of any subjective reality.
There are, however, other uses of the terminology related to objectivity. Many philosophers use the term “subjective knowledge” to refer only to knowledge of one’s own subjective states. Such knowledge is distinguished from one’s knowledge of another individual’s subjective states and from knowledge of objective reality, which would both be objective knowledge under the present definitions. Your knowledge of another person’s subjective states can be called objective knowledge since it is presumably part of the world that is “object” for you, just as you and your subjective states are part of the world that is “object” for the other person.
This is a prominent distinction in epistemology (the philosophical study of knowledge) because many philosophers have maintained that subjective knowledge in this sense has a special status. They assert, roughly, that knowledge of one’s own subjective states is direct, or immediate, in a way that knowledge of anything else is not. It is convenient to refer to knowledge of one’s own subjective states simply as subjective knowledge. Following this definition, objective knowledge would be knowledge of anything other than one’s own subjective states.
One last prominent style of usage for terms related to objectivity deals with the nature of support a particular knowledge-claim has. “Objective knowledge” can designate a knowledge-claim having, roughly, the status of being fully supported or proven. Correspondingly, “subjective knowledge” might designate some unsupported or weakly supported knowledge-claim. It is more accurate to refer to these as objective and subjective judgments, rather than knowledge, but one should be on guard for the use of the term “knowledge” in this context. This usage fits with the general connotation for the term “objectivity” of solidity, trustworthiness, accuracy, impartiality, etc. The general connotation for many uses of “subjectivity” includes unreliability, bias, an incomplete (personal) perspective, etc.
“Objective judgment or belief” refers to a judgment or belief based on objectively strong supporting evidence, the sort of evidence that would be compelling for any rational being. A subjective judgment would then seem to be a judgment or belief supported by evidence that is compelling for some rational beings (subjects) but not compelling for others. It could also refer to a judgment based on evidence that is of necessity available only to some subjects.
These are the main uses for the terminology within philosophical discussions. Let’s examine some of the main epistemological issues regarding objectivity, presuming the aforementioned definitions of “objective reality” and “subjective reality.”
2. Epistemological Issues
a. Can We Know Objective Reality?
The subjective is characterized primarily by perceiving mind. The objective is characterized primarily by physical extension in space and time. The simplest sort of discrepancy between subjective judgment and objective reality is well illustrated by John Locke’s example of holding one hand in ice water and the other hand in hot water for a few moments. When one places both hands into a bucket of tepid water, one experiences competing subjective experiences of one and the same objective reality. One hand feels it as cold, the other feels it as hot. Thus, one perceiving mind can hold side-by-side clearly differing impressions of a single object. From this experience, it seems to follow that two different perceiving minds could have clearly differing impressions of a single object. That is, two people could put their hands into the bucket of water, one describing it as cold, the other describing it as hot. Or, more plausibly, two people could step outside, one describing the weather as chilly, the other describing it as pleasant.
We confront, then, an epistemological challenge to explain whether, and if so how, some subjective impressions can lead to knowledge of objective reality. A skeptic can contend that our knowledge is limited to the realm of our own subjective impressions, allowing us no knowledge of objective reality as it is in itself.
b. Does Agreement Among Subjects Indicate Objective Knowledge?
Measurement is allegedly a means to reach objective judgments, judgments having at least a high probability of expressing truth regarding objective reality. An objective judgment regarding the weather, in contrast to the competing subjective descriptions, would describe it as, say, 20°C (68°F). This judgment results from use of a measuring device. It is unlikely that the two perceiving subjects, using functioning thermometers, would have differing judgments about the outside air.
The example of two people giving differing reports about the weather (e.g., “chilly” vs. “pleasant”) illustrates that variation in different subjects’ judgments is a possible indicator of the subjectivity of their judgments. Agreement in different subjects’ judgments (20°C) is often taken to be indicative of objectivity. Philosophers commonly call this form of agreement “intersubjective agreement.” Does intersubjective agreement prove that there is objective truth? No, because having two or three or more perceiving subjects agreeing, for example, that it is very cold does not preclude the possibility of another perceiving subject claiming that it is not at all cold. Would we have a high likelihood of objective truth if we had intersubjective agreement among a large number of subjects? This line of reasoning seems promising, except for another observation from Locke about the possible discrepancies between subjective impressions and objective reality.
c. Primary and Secondary Qualities: Can We Know Primary Qualities?
According to Locke’s distinction between primary and secondary qualities, some of our subjective impressions do not correspond to any objective reality in the thing perceived. Our perception of sound, for example, is nothing like the actual physical vibrations that we know are the real cause of our subjective experience. Our perception of color is nothing like the complex combinations of various frequencies of electromagnetic radiation that we know cause our perception of color. Locke asserts that we can, through science, come to know what primary characteristics the object has in itself. Science teaches us, he says, that sound as we perceive it is not in the object itself whereas spatial dimensions, mass, duration, motion, etc. are in the object itself.
In response to this point, one can assert that, through science, we discover that those subjective impressions corresponding to nothing in the object are nonetheless caused by the truly objective features of the object. Thus, Locke’s approach leads to optimism regarding objective knowledge, i.e., knowledge of how things are independent of our perceptions of them.
d. Skepticism Regarding Knowledge of Objective Reality
In response to Locke’s line of thinking, Immanuel Kant used the expression “Ding an sich” (the “thing-in-itself”) to designate pure objectivity. The Ding an sich is the object as it is in itself, independent of the features of any subjective perception of it. While Locke was optimistic about scientific knowledge of the true objective (primary) characteristics of things, Kant, influenced by skeptical arguments from David Hume, asserted that we can know nothing regarding the true nature of the Ding an sich, other than that it exists. Scientific knowledge, according to Kant, is systematic knowledge of the nature of things as they appear to us subjects rather than as they are in themselves.
Using Kant’s distinction, intersubjective agreement would seem to be not only the best evidence we can have of objective truth but constitutive of objective truth itself. (This might require a theoretically perfect intersubjective agreement under ideal conditions.) Starting from the assumption that we can have knowledge only of things as they appear in subjective experience, the only plausible sense for the term “objective” would be judgments for which there is universal intersubjective agreement, or just for which there is necessarily universal agreement. If, alternately, we decide to restrict the term “objective” to the Ding an sich, there would be, according to Kant, no objective knowledge. The notion of objectivity thus becomes useless, perhaps even meaningless (for, say, a verificationist).
Facing any brand of skepticism regarding knowledge of objective reality in any robust sense, we should note that the notion of there being an objective reality is independent of any particular assertion about our prospects for knowing that reality in any objective sense. One should, in other words, agree that the idea of some objective reality, existing as it is independent of any subjective perception of it, apparently makes sense even for one who holds little hope for any of us knowing that there is such a reality, or knowing anything objectively about such a reality. Perhaps our human situation is such that we cannot know anything beyond our experiences; perhaps we are, each one of us individually, confined to the theater of our own minds. Nonetheless, we can conceive what it means to assert an objective reality beyond the stream of our experiences.
e. Defending Objective Knowledge
Opposing skepticism regarding objective reality, it is conceivable that there are “markers” of some sort in our subjective experiences distinguishing the reliable perceptions of objective truth from the illusions generated purely subjectively (hallucinations, misperceptions, perceptions of secondary qualities, etc.). Descartes, for example, wrote of “clear and distinct impressions” as having an inherent mark, as it were, attesting to their reliability as indicators of how things are objectively. This idea does not have many defenders today, however, since Descartes asserted certainty for knowledge derived from clear and distinct ideas. More acceptable among philosophers today would be a more modest assertion of a high likelihood of reliability for subjective impressions bearing certain marks. The marks of reliable impressions are not “clear and distinct” in Descartes’ sense, but have some connection to common sense ideas about optimal perceptual circumstances. Thus, defenders of objective knowledge are well advised to search for subjectively accessible “marks” on impressions that indicate a high likelihood of truth.
A defender of the prospects for objective knowledge would apparently want also to give some significance to intersubjective agreement. Assertions of intersubjective agreement are based, of course, on one’s subjective impressions of other perceiving subjects agreeing with one’s own judgments. Thus, intersubjective agreement is just one type of “mark” one might use to identify the more likely reliable impressions. This is simple common-sense. We have much more confidence in our judgments (or should, anyway) when they are shared by virtually everyone with whom we discuss them than when others (showing every sign of normal perceptual abilities and a sane mind) disagree. A central assumption behind this common pattern of thought, however, is that there are indeed many other perceiving subjects besides ourselves and we are all capable, sometimes at least, of knowing objective reality. Another assumption is that objective reality is logically consistent. Assuming that reality is consistent, it follows that your and my logically incompatible judgments about a thing cannot both be true; intersubjective disagreement indicates error for at least one of us. One can also argue that agreement indicates probable truth, because it is unlikely that you and I would both be wrong in our judgment regarding an object and both be wrong in exactly the same way. Conversely, if we were both wrong about some object, it is likely that we would have differing incorrect judgments about it, since there are innumerable ways for us to make a wrong judgment about an object.
f. Is There No Escape From the Subjective?
Despite plausible ways of arguing that intersubjective disagreement indicates error and agreement indicates some probability of truth, defenses of objective knowledge all face the philosophically daunting challenge of providing a cogent argument showing that any purported “mark” of reliability (including apparent intersubjective agreement) actually does confer a high likelihood of truth. The task seems to presuppose some method of determining objective truth in the very process of establishing certain sorts of subjective impressions as reliable indicators of truth. That is, we require some independent (non-subjective) way of determining which subjective impressions support knowledge of objective reality before we can find subjectively accessible “markers” of the reliable subjective impressions. What could such a method be, since every method of knowledge, judgment, or even thought seems quite clearly to go on within the realm of subjective impressions? One cannot get out of one’s subjective impressions, it seems, to test them for reliability. The prospects for knowledge of the objective world are hampered by our essential confinement within subjective impressions.
3. Metaphysical Issues
In metaphysics, i.e., the philosophical study of the nature of reality, the topic of objectivity brings up philosophical puzzles regarding the nature of the self, for a perceiving subject is also, according to most metaphysical theories, a potential object of someone else’s perceptions. Further, one can perceive oneself as an object, in addition to knowing one’s subjective states fairly directly. The self, then, is known both as subject and as object. Knowledge of self as subject seems to differ significantly from knowledge of the self as object.
The differences are most markedly in evidence in the philosophy of mind. Philosophers of mind try to reconcile, in some sense, what we know about the mind objectively and what we know subjectively. Observing minded beings as objects is central to the methods of psychology, sociology, and the sciences of the brain. Observing one minded being from the subjective point of view is something we all do, and it is central to our ordinary notions of the nature of mind. A fundamental problem for the philosophy of mind is to explain how any object, no matter how complex, can give rise to mind as we know it from the subjective point of view. That is, how can mere “stuff” give rise to the rich complexity of consciousness as we experience it? It seems quite conceivable that there be creatures exactly like us, when seen as objects, but having nothing like our conscious sense of ourselves as subjects. So there is the question of why we do have subjective conscious experience and how that comes to be. Philosophers also struggle to explain what sort of relationship might obtain between mind as we see it embodied objectively and mind as we experience it subjectively. Are there cause-and-effect relationships, for example, and how do they work?
The topic of seeing others and even oneself as an object in the objective world is a metaphysical issue, but it brings up an ethical issue regarding the treatment of persons. There are, in addition, special philosophical issues regarding assertions of objectivity in ethics.
4. Objectivity in Ethics
a. Persons in Contrast to Objects
First, the dual nature of persons as both subjects (having subjective experience) and objects within objective reality relates to one of the paramount theories of ethics in the history of philosophy. Immanuel Kant’s ethics gives a place of central importance to respect for persons. One formulation of his highly influential Categorical Imperative relates to the dual nature of persons. This version demands that one “treat humanity, in your own person or in the person of any other, never simply as a means, but always at the same time as an end” (Groundwork, p. 96). One may treat a mere object simply as a means to an end; one may use a piece of wood, for example, simply as a means of repairing a fence. A person, by contrast, is marked by subjectivity, having a subjective point of view, and has a special moral status according to Kant. Every person must be regarded as an end, that is as having intrinsic value. It seems that the inherent value of a person depends essentially on the fact that a person has a subjective conscious life in addition to objective existence.
This ethical distinction brings out an aspect of the term “object” as a “mere object,” in contrast to the subjectivity of a person. The term “objectivity” in this context can signify the mere “object-ness” of something at its moral status.
Despite widespread agreement that being a person with a subjective point of view has a special moral status, there is a general difficulty explaining whether this alleged fact, like all alleged moral facts, is an objective fact in any sense. It is also difficult to explain how one can know moral truths if they are indeed objective.
b. Objectivism, Subjectivism and Non-Cognitivism
Philosophical theories about the nature of morality generally divide into assertions that moral truths express subjective states and assertions that moral truths express objective facts, analogous to the fact, for example, that the sun is more massive than the earth.
So-called subjectivist theories regard moral statements as declaring that certain facts hold, but the facts expressed are facts about a person’s subjective states. For example, the statement “It is wrong to ignore a person in distress if you are able to offer aid” just means something like “I find it offensive when someone ignores a person in distress….” This is a statement about the subject’s perceptions of the object, not about the object itself (that is, ignoring a person in distress). Objectivist theories, in contrast, regard the statement “It is wrong to ignore….” as stating a fact about the ignoring itself.
Subjectivist theories do not have to regard moral statements as statements about a single subject’s perceptions or feelings. A subjectivist could regard the statement “Torture is immoral,” for example, as merely expressing the feeling of abhorrence among members of a certain culture, or among people in general.
In addition to objectivism and subjectivism, a third major theory of morality called non-cognitivism asserts that alleged moral statements do not make any claim about any reality, either subjective or objective. This approach asserts that alleged moral statements are just expressions of subjective feelings; they are not reports about such feelings. Thus the statement “Torture is immoral” is equivalent to wincing or saying “ugh” at the thought of torture, rather than describing your feelings about torture.
c. Objectivist Theories
Among objectivist theories of morality, the most straightforward version declares that is it an objective fact, for example, that it is wrong to ignore a person in distress if you are able to offer aid. This sort of theory asserts that the wrongness of such behavior is part of objective reality in the same way that the sun’s being more massive than the earth is part of objective reality. Both facts would obtain regardless of whether any conscious being ever came to know either of them.
Other objectivist theories of morality try to explain the widespread feeling that there is an important difference between moral assertions and descriptive, factual assertions while maintaining that both types of assertion are about something other than mere subjective states. Such theories compare moral assertions to assertions about secondary qualities. The declaration that a certain object is green is not merely a statement about a person’s subjective state. It makes an assertion about how the object is, but it’s an assertion that can be formulated only in relation to the states of perceiving subjects under the right conditions. Thus, determining whether an object is green depends essentially on consulting the considered judgments of appropriately placed perceivers. Being green, by definition, implies the capacity to affect perceiving humans under the right conditions in certain ways. By analogy, moral assertions can be assertions about how things objectively are while depending essentially on consulting the considered judgments of appropriately placed perceivers. Being morally wrong implies, on this view, the capacity to affect perceiving humans under the right conditions in certain ways.
d. Can We Know Moral Facts?
For either sort of objectivist approach to morality, it is difficult to explain how people come to know the moral properties of things. We seem not to be able to know the moral qualities of things through ordinary sense experience, for example, because the five senses seem only to tell us how things are in the world, not how they ought to be. Nor can we reason from the way things are to the way they ought to be, since, as David Hume noted, “is” does not logically imply an “ought.” Some philosophers, including Hume, have postulated that we have a special mode of moral perception, analogous to but beyond the five ordinary senses, which gives us knowledge of moral facts. This proposal is controversial, since it presents problems for verifying moral perceptions and resolving moral disputes. It is also problematic as long as it provides no account of how moral perception works. By contrast, we have a good understanding of the mechanisms underlying our perception of secondary qualities such as greenness.
Many people assert that it is much less common to get widespread agreement on moral judgments than on matters of observable, measurable facts. Such an assertion seems to be an attempt to argue that moral judgments are not objective based on lack of intersubjective agreement about them. Widespread disagreement does not, however, indicate that there is no objective fact to be known. There are many examples of widespread disagreement regarding facts that are clearly objective. For example, there was once widespread disagreement about whether the universe is expanding or in a “steady state.” That disagreement did not indicate that there is no objective fact concerning the state of the universe. Thus, widespread disagreement regarding moral judgments would not, by itself, indicate that there are no objective moral facts.
This assertion is apparently an attempt to modify the inference from widespread intersubjective agreement to objective truth. If so, it is mistaken. Assuming that the inference from intersubjective agreement to probable objective truth is strong, it does not follow that one can infer from lack of intersubjective agreement to probable subjectivity. As previously indicated, intersubjective disagreement logically supports the assertion that there is an error in at least one of the conflicting judgments, but it does not support an assertion of the mere subjectivity of the matter being judged. Further, the vast areas of near-universal agreement in moral judgments typically receives too little attention in discussions of the nature of morality. There are seemingly innumerable moral judgments (e.g., it is wrong to needlessly inflict pain on a newborn baby) that enjoy nearly universal agreement across cultures and across time periods. This agreement should, at least prima facie, support an assertion to objectivity as it does for, say, judgments about the temperature outside.
5. Major Historical Philosophical Theories of Objective Reality
Any serious study of the nature of objectivity and objective knowledge should examine the central metaphysical and epistemological positions of history’s leading philosophers, as well as contemporary contributions. The following very brief survey should give readers some idea of where to get started.
Plato is famous for a distinctive view of objective reality. He asserted roughly that the greatest reality was not in the ordinary physical objects we sense around us, but in what he calls Forms, or Ideas. (The Greek term Plato uses resembles the word “idea,” but it is preferable to call them Forms, for they are not ideas that exist only in a mind, as is suggested in our modern usage of the term “idea.”) Ordinary objects of our sense experience are real, but the Forms are a “higher reality,” according to Plato. Having the greatest reality, they are the only truly objective reality, we could say.
Forms are most simply described as the pure essences of things, or the defining characteristics of things. We see many varied instances of chairs around us, but the essence of what it is to be a chair is the Form “chair.” Likewise, we see many beautiful things around us, but the Form “beauty” is the “what it is to be beautiful.” The Form is simply whatever it is that sets beautiful things apart from everything else.
In epistemology, Plato accordingly distinguishes the highest knowledge as knowledge of the highest reality, the Forms. Our modern usage of the terms “objective knowledge” and “objective reality” seem to fit in reasonably well here.
Aristotle, by contrast, identifies the ordinary objects of sense experience as the most objective reality. He calls them “primary substance.” The forms of things he calls “secondary substance.” Hence, Aristotle’s metaphysics seems to fit better than Plato’s with our current understanding of objective reality, but his view of objective knowledge differs somewhat. For him, objective knowledge is knowledge of the forms, or essences, of things. We can know individual things objectively, but not perfectly. We can know individuals only during occurrent perceptual contact with them, but we can know forms perfectly, or timelessly.
Descartes famously emphasized that subjective reality is better known than objective reality, but knowledge of the objective reality of one’s own existence as a non-physical thinking thing is nearly as basic, or perhaps as basic, as one’s knowledge of the subjective reality of one’s own thinking. For Descartes, knowledge seems to start with immediate, indubitable knowledge of one’s subjective states and proceeds to knowledge of one’s objective existence as a thinking thing. Cogito, ergo sum (usually translated as “I think, therefore I am”) expresses this knowledge. All knowledge of realities other than oneself ultimately rests on this immediate knowledge of one’s own existence as a thinking thing. One’s existence as a non-physical thinking thing is an objective existence, but it appears that Descartes infers this existence from the subjective reality of his own thinking. The exact interpretation of his famous saying is still a matter of some controversy, however, and it may not express an inference at all.
We have already looked at some of John Locke’s most influential assertions about the nature of objective reality. Bishop Berkeley followed Locke’s empiricism in epistemology, but put forth a markedly different view of reality. Berkeley’s Idealism asserts that the only realities are minds and mental contents. He does, however, have a concept of objective reality. A table, for example, exists objectively in the mind of God. God creates objective reality by thinking it and sustains any objective reality, such as the table, only so long as he continues to think of it. Thus the table exists objectively for us, not just as a fleeting perception, but as the totality of all possible experiences of it. My particular experience of it at this moment is a subjective reality, but the table as an objective reality in the mind of God implies a totality of all possible experiences of it. Berkeley asserts there is no need to postulate some physical substance underlying all those experiences to be the objective reality of the table; the totality of possible experiences is adequate.
We have looked briefly at some of Kant’s claims about the nature of objective reality. More recent philosophy continues these discussions in many directions, some denying objectivity altogether. Detailed discussion of these movements goes beyond the purview of this essay, but interested readers should specially investigate Hegel’s idealism, as well as succeeding schools of thought such as phenomenology, existentialism, logical positivism, pragmatism, deconstructionism, and post-modernism. The philosophy of mind, naturally, also continually confronts basic questions of subjectivity and objectivity.
6. References and Further Reading
- Alston, William P. “Yes, Virginia, There is a Real World.” Proceedings and Addresses of the American Philosophical Association 52 ():
- Descartes, Rene. Meditations (). In The Philosophical Writings of Descartes, eds. J. Cottingham, R. Stoothoff and D. Murdoch (Cambridge: Cambridge University Press, ).
- Kant, Immanuel. Prolegomena to any Future Metaphysics (). Trans. James W. Ellington (Indianapolis: Hackett, ).
- Locke, John. Essay Concerning Human Understanding (). Ed. Peter Nidditch (Oxford: Clarendon Press, ).
- Moser, Paul. Philosophy After Objectivity. (New York: Oxford University Press, ).
- Nagel, Thomas. The View From Nowhere. (New York: Oxford University Press, ).
- Quine, W. V. Word and Object. (Cambridge, MA: MIT Press, ).
- Rorty, Richard. Philosophy and the Mirror of Nature. (Princeton: Princeton University Press, ).
- Rorty, Richard. Objectivity, Relativism, and Truth: Philosophical Papers, Vol. 1. (Cambridge: Cambridge University Press, ).
- Wright, Crispin. Realism, Meaning, and Truth. (Oxford: Blackwell, ).
Dwayne H. Mulder
Sonoma State University
U. S. A.