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 solemnity.

Compassion is the basis of morality.

Talent works for money and fame; the motive which moves genius to productivity is, on the other hand, less easy to determine.

The eternal being..., as it lives in us, also lives in every animal.

That arithmetic is the basest of all mental activities is proved by the fact that it is the only one that can be accomplished by a machine.

They tell us that suicide is the greatest piece of cowardice... that suicide is wrong; when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person.

Vulgar people take huge delight in the faults and follies of great men.