A Sketch
We cannot know reality as it is in itself because our experience of reality, through which we come to know reality, is mediated by language. As an object of our experience and a content of our knowledge, reality is a product of the functions of linguistic mediation.
By using a word as a signifier, we identify the object signified as one thing and not another. A word establishes distinguishing boundaries, revealing what is contained within and concealing what resides without. Words used together construct meaningful structures and frameworks, and these more complex structures and frameworks also establish boundaries that reveal and conceal the signified objects.
The linguistic function of establishing boundaries begins not after the experience of an object but rather prior to the experience. The object which we experience, reality included, is not immediately present to us, for the functioning of linguistic signs grants us passage to and mediates our encounter with that object. Language is already functioning at the start of our experience of reality.[i]
Say I am exploring a cave and come upon some writing on the cavern walls; I might say that I first encountered the writing when I first perceived it and that language comes into play following the initial perception of the writing on the wall. After seeing the writing on the wall, I can then formulate in language an expression indicative of this perception of writing. Language, however, functions not only at this stage in the experience: following the perception; it makes the perception possible in the first place. Language functions prior to the perception.
In order for me to perceive the writing upon the wall I have to have in my mind some concept, however vague or precise, of writing. If I possess no such concept, then I will not see writing, but instead something else, perhaps markings on the wall. But for that perception of markings to occur, I would need to have some concept in my mind of markings. Whenever we perceive a thing, we perceive it as something, as it fits into the boundaries established by our language.[ii] What fits inside the framework may be revealed to us; what lies outside will be concealed from us.
Given this, we might still be able to know reality as it is in itself in so far as reality fit into the boundaries established by the words of our philosophical constructs; however, while the signified may be revealed in the signifier, the revelation within the boundaries is not transparent.
A professor of mine remarked that if you want to understand a philosopher, study his metaphors. Metaphors, and more generally figurative and symbolic language, are a fundamental component in the constructed frameworks by which we understand reality. In addition, words bearing literal significance are fashioned in and inseparable from their historical and cultural birth and functioning. Language lives by the blood of history and culture, time and place. Whereas figurative language creates meaning, all language rooted in historical and cultural significance produces meaning, in so far as the meanings of words are marked by the world in which they were born and live. To speak metaphorically, they radiate the colors the age; they emit the scents of their times and places. They are not transparent windows through which we see the things themselves as they really are. The window is not so open that we can smell the natural fragrance with no artificial scent added: the window frame has its own scent that is added to that of reality. The window glass is stained, revealing and concealing the picture beyond, and adding to and subtracting from what we see.
The mediations of language, which give us access to reality, function beyond setting boundaries. Reality, in so far as we know it by means of language is in a way a product of language. The reality that we know, that our philosophical acts pursue, we in truth partially produce. The natural is in a sense artificial. The philosophical realist, either metaphysical or phenomenological, should consider that language mediates – indeed, shapes – our perception and interpretation of reality, whether that reality is formulated in terms of “forms,” “being,” “essence,” or the “things-themselves.” “Every time metaphysics takes a stab at determining ‘Being,’ it comes up with some sort of being (substance, form, will, mind, etc.),” writes John D. Caputo in Radical Hermeneutics.[iii]
W. Norris Clarke, S.J., a Thomistic metaphysician and far more conservative than Caputo, agrees that “the conceptual-linguistic expression of what [metaphysicians] have discovered will always have to resign itself to being incomplete, falling short of the fullness of the real, in a word, perspectival, seen from within the resources of thinking, speaking, imagining, and feeling of the metaphysicians own culture in its situation in human history.”[iv]
The mediations of language do not condemn the philosopher to an absolute relativism, which denies that we can know reality. These mediations merely mean that we cannot know reality as it is in itself, not that we cannot know reality. Whereas realism assumes that our ideas correspond to the way things are, relativism assumes that no such correspondence exists. Relativism denies the correspondence between our ideas and reality, throwing the correspondence theory of truth to the wind. The functions of language here described mean that any such correspondence is not one-to-one.
That said, the correspondence theory of truth takes a hit from the functioning of linguistic mediations. No one has a pure, unmediated access to reality. No one sees reality as it is in itself, nor knows it as such. Rather, what we each see and know, if reality is really the object of our perception and knowledge, is in a way a product of our making, a social construct, if you will. The correspondence theory of truth says that a proposition’s truth is determined by whether or not it corresponds to reality, but no one can fully test that correspondence. Reality as it is in itself lies ahead of our experience, ahead our perception, ahead our interpretation, ahead our knowledge. We test a statement not by reality itself free of our subjectivity, but by what we know of reality; and what we know of reality we have perceived and understood, but also produced and constructed.
Posted by Kyle R. Cupp 
