"Optimism is a truly wicked way of thinking."

"There is no absurdity so palpable but that it may be firmly planted in the human head if you only begin to inculcate it before the age of five, by constantly repeating it with an air of great solemnit…"

"The only true evil is existence."

"The safest way of not being very miserable is not to expect to be very happy."

"The intellect is a mere tool in the service of the will."