"Man is a credulous animal, and must believe something; in the absence of good grounds for belief, he will be satisfied with bad ones."

"Men who are unhappy, like men who sleep badly, are always proud of the fact."

"The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry."

"This is patently absurd; but whoever wishes to become a philosopher must learn not to be frightened by absurdities."

"To fear love is to fear life, and those who fear life are already three parts dead."

"The most savage controversies are those about matters as to which there is no good evidence either way."

"Experience, n. The wisdom that enables us to recognize as an undesirable old acquaintance the folly that we have already embraced."

"Honesty is the best policy; but he who is governed by that maxim is not an honest man."

"Cowards die many times before their deaths; The valiant never taste of death but once."

"Words are the pen of the heart, but music is the pen of the soul."

"Gods don't like people not doing much work. People who aren't busy all the time might start to think."

"It is only about things that do not interest one that one can give really unbiased opinions, which is no doubt the reason why an unbiased opinion is always valueless."