Madness is the result not of uncertainty but certainty.

The man of knowledge must be able not only to love his enemies but also to hate his friends.

Whoever does not know how to find the way to his ideal lives more frivolously and impudently than the man without an ideal.

Happiness is a fata morgana. the only way to not end up unhappy is to not long for happiness.

At the very moment when someone is beginning to take philosophy seriously, the whole world believes the opposite.

Life is hard to bear: but do not affect to be so delicate! We are all of us fine sumpter asses and assesses.

Death is close enough at hand so we do not need to be afraid of life.