There is not enough love and goodness in the world to permit giving any of it away to imaginary beings.

One man runs to his neighbor because he is looking for himself, and another because he wants to loose himself. Your bad love of yourselves makes solitude a prison for you.

In certain pious people I have found a hatred of reason, and have been favourably disposed to them for it: their bad intellectual conscience was at least exposed by that!

Those who are slow to know suppose that slowness is the essence of knowledge.

Happiness is the feeling that power increases - that resistance is being overcome.

Man's task is simple. He should cease letting his existence be a thoughtless accident.

Man alone resists the direction of gravitation: he constantly wants to fall--upwards.