The Joyful Wisdom · Friedrich Wilhelm Nietzsche
307.
_In Favour of Criticism._—Something now appears to thee as an error which thou formerly lovedst as a truth, or as a probability: thou pushest it from thee and imaginest that thy reason has there gained a victory. But perhaps that error was then, when thou wast still another person—thou art always another person,—just as necessary to thee as all thy present "truths," like a skin, as it were, which concealed and veiled from thee much which thou still mayst not see. Thy new life, and not thy reason, has slain that opinion for thee: _thou dost not require it any longer_, and now it breaks down of its own accord, and the irrationality crawls out of it as a worm into the light. When we make use of criticism it is not something arbitrary and impersonal,—it is, at least very often, a proof that there are lively, active forces in us, which cast a skin. We deny, and must deny, because something in us _wants_ to live and affirm itself, something which we perhaps do not as yet know, do not as yet see!—So much in favour of criticism. _The History of each Day._—What is it that constitutes the history of each day for thee? Look at thy habits of which it consists: are they the product of numberless little acts of cowardice and laziness, or of thy bravery and inventive reason? Although the two cases are so different, it is possible that men might bestow the same praise upon thee, and that thou mightst also be equally useful to them in the one case as in the other. But praise and utility and respectability may suffice for him whose only desire is to have a good conscience,—not however for thee, the "trier of the reins," who hast a _consciousness of the conscience_!
Text from Project Gutenberg, public domain in the United States.