Wednesday, March 6, 2019

John Locke and the Janitorial Theory of Philosophy

From the wonderful "Epistle to the Readers" in Locke's Essay Concerning Human Understanding:
The commonwealth of learning is not at this time without master-builders, whose mighty designs in advancing the sciences, will leave lasting monuments to the admiration of posterity; but every one must not hope to be a Boyle, or a Sydenham; and in an age that produces such masters, as the great — Huygenius, and the incomparable Mr. Newton, with some others of that strain; it is ambition enough to be employed as an under-labourer in clearing the ground a little, and removing some of the rubbish that lies in the way to knowledge; which certainly had been very much more advanced in the world, if the endeavours of ingenious and industrious men had not been much cumbered with the learned but frivolous use of uncouth, affected, or unintelligible terms, introduced into the sciences, and there made an art of, to that degree, that philosophy, which is nothing but the true knowledge of things, was thought unfit, or uncapable to be brought into well-bred company, and polite conversation. Vague and insignificant forms of speech, and abuse of language, have so long passed for mysteries of science; and hard and misapplied words, with little or no meaning, have, by prescription, such a right to be mistaken for deep learning, and height of speculation, that it will not be easy to persuade, either those who speak, or those who hear them, that they are but the covers of ignorance, and hindrance of true knowledge. To break in upon the sanctuary of vanity and ignorance, will be, I suppose, some service to human understanding: though so few are apt to think they deceive or are deceived in the use of words; or that the language of the sect they are of, has any faults in it which ought to be examined or corrected; that I hope I shall be pardoned, if I have in the third book dwelt long on this subject, and endeavoured to make it so plain, that neither the inveterateness of the mischief, nor the prevalence of the fashion, shall be any excuse for those, who will not take care about the meaning of their own words, and will not suffer the significancy of their expressions to be inquired into.

I take this to be a great statement of the ambition of modern philosophy. Locke apparently lowers the sights: Philosophers cannot hope to be "master builders" of human knowledge in the way the great scientists can be. The philosopher's task is merely to clear the ground of intellectual debris. But that janitorial project (clarifying some terms, making some distinctions) is soon revealed to be transformative in its own right. The goal is to do away with the prejudices and superstitions that clutter human thought. Without such a clearing, we are incapable of exercising reason or persuasion.

Sheldon Wolin has a nice reading of this section in chapter nine, part II of Politics and Vision (expanded edition).

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