... life may be compared to a piece of embroidery, of which, during the first half of his time, a man gets a sight of the right side, and during the … - Arthur Schopenhauer

To free a man from error is not to deprive him of anything but to give him something: for the knowledge that a thing is false is a piece of truth. No error is harmless: sooner or later it will bring misfortune to him who harbours it. Therefore deceive no one, but rather confess ignorance of what you do not know, and leave each man to devise his own articles of faith for himself.

No greater mistake can be made than to imagine that what has been written latest is always the more correct; that what is written later on is an improvement on what was written previously; and that every change means progress. Men who think and have correct judgment, and people who treat their subject earnestly, are all exceptions only. Vermin is the rule everywhere in the world: it is always at hand and busily engaged in trying to improve in its own way upon the mature deliberations of the thinkers.

His [the Philistine’s] existence is not animated by any keen desire for knowledge and insight for their own sake, or by any desire for really aesthetic pleasures which is so entirely akin to it. If, however, any pleasures of this kind are forced on him by fashion or authority, he will dispose of them as briefly as possible as a kind of compulsory labour.