Sleeping is no mean art: for its sake one must stay awake all day.

It is impossible to suffer without making someone pay for it; every complaint already contains revenge.

Doing ill to those on whom we have to make our power felt; for pain is a far more sensitive means for that purpose than pleasure: pain always asks concerning the cause, while pleasure is inclined to keep within itself and not look backward.

Rejoicing in our joy, not suffering over our suffering, makes someone a friend.

Every day I count wasted in which there has been no dancing.

To become the founder of a new religion one must be psychologically infallible in one's knowledge of a certain average type of souls who have not yet recognized that they belong together.

I despise mystics, they fancy themselves so deep, when they aren't even superficial.