Concerning Human Understanding - Online Library of Liberty

Our author’s great work, the ‘Essay concerning Human Understanding,’ he had been employed about for some years, and he finished it in Holland about the end of the year 1687. He made an abridgment of it himself, which his friend Mr. Le Clerc translated into French, and inserted in one of his ‘Bibliotheques.’ This abridgment was so highly approved of by all persons of understanding, and sincere lovers of truth, that they expressed the strongest desire to see the whole work.

Gray, Henry. 1918. Anatomy of the Human Body. V. Angiology. 4b. The Heart

It will possibly be censured as a great piece of vanity or insolence in me, to pretend to instruct this our knowing age; it amounting to little less, when I own, that I publish this Essay with hopes it may be useful to others. But if it may be permitted to speak freely of those, who with a feigned modesty condemn as useless, what they themselves write, methinks it savours much more of vanity or insolence, to publish a book for any other end; and he fails very much of that respect he owes the public, who prints, and consequently expects men should read that, wherein he intends not they should meet with any thing of use to themselves or others: and should nothing else be found allowable in this treatise, yet my design will not cease to be so; and the goodness of my intention ought to be some excuse for the worthlessness of my present. It is that chiefly which secures me from the fear of censure, which I expect not to escape more than better writers. Men’s principles, notions, and relishes are so different, that it is hard to find a book which pleases or displeases all men. I acknowledge the age we live in is not the least knowing, and therefore not the most easy to be satisfied. If I have not the good luck to please, yet nobody ought to be offended with me. I plainly tell all my readers, except half a dozen, this treatise was not at first intended for them; and therefore they need not be at the trouble to be of that number. But yet if any one thinks fit to be angry, and rail at it, he may do it securely: for I shall find some better way of spending my time, than in such kind of conversation. I shall always have the satisfaction to have aimed sincerely at truth and usefulness, though in one of the meanest ways. 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.

A Socratic Perspective on the Nature of Human Evil

John Locke, The Works of John Locke, vol. 1 (An Essay concerning Human Understanding Part 1) [1689]

I would crave leave to ask your lordship, were there ever in the world any atheists or no? If there were not, what need is there of raising a question about the being of a God, when nobody questions it? What need of provisional arguments against a fault, from which mankind are so wholly free, and which, by an universal consent, they may be presumed to be secure from? If you say (as I doubt not but you will) that there have been atheists in the world, then your lordship’s universal consent reduces itself to only a great majority; and then make that majority as great as you will, what I have said in the place quoted by your lordship, leaves it in its full force; and I have not said one word that does in the least invalidate this argument for a God. The argument I was upon there, was to show, that the idea of God was not innate; and to my purpose it was sufficient, if there were but a less number found in the world, who had no idea of God, than your lordship will allow there have been of professed atheists; for whatsoever is innate, must be universal in the strictest sense. One exception is a sufficient proof against it. So that all that I said, and which was quite to another purpose, did not at all tend, nor can be made use of, to invalidate the argument for a Deity, grounded on such an universal consent, as your lordship, and all that build on it, must own; which is only a very disproportioned majority; such an universal consent my argument there neither affirms nor requires to be less than you will be pleased to allow it. Your lordship therefore might, without any prejudice to those declarations of good will and favour you have for the author of the “Essay of Human Understanding,” have spared the mentioning his quoting authors that are in print, for matters of fact to quite another purpose, “as going about to invalidate the argument for a Deity, from the universal consent of mankind;” since he leaves that universal consent as entire and as large as you yourself do, or can own, or suppose it. But here I have no reason to be sorry that your lordship has given me this occasion for the vindication of this passage of my book; if there should be any one besides your lordship, who should so far mistake it, as to think it in the least invalidates the argument for a God, from the universal consent of mankind.