Is it better to out-monster the monster or to be quietly devoured?

The lack of closeness among friends is a fault that cannot be reprimanded without becoming incurable.

Mathematics would certainly have not come into existence if one had known from the beginning that there was in nature no exactly straight line, no actual circle, no absolute magnitude.

Subordination to morality can be slavish or vain or self- interested or resigned or gloomily enthusiastic or thoughtless or an act of despair, just as subordination to a prince can be: in itself it is nothing moral.

Every virtue inclines to stupidity, every stupidity to virtue; "stupid to the point of sanctity," they say in Russia, - let us be careful lest out of pure honesty we eventually become saints and bores!

To the good warrior soundeth "thou shalt" pleasanter than "I will." And all that is dear unto you, ye shall first have it commanded unto you.

Only individuals have a sense of responsibility.