If anyone is unwilling to descend into himself, because this is too painful, he will remain superficial in his writing. . . If I perform to myself, then it’s this that the style expresses. And then the style cannot be my own. If you are unwilling to know what you are, your writing is a form of deceit.

In order to be able to set a limit to thought, we should have to find both sides of the limit thinkable (i.e. we should have to be able to think what cannot be thought).

The object of philosophy is the logical clarification of thought.

Don't for heaven's sake, be afraid of talking nonsense! But you must pay attention to your nonsense.

Death is not an event in life: we do not live to experience death.

An honest religious thinker is like a tightrope walker. He almost looks as though he were walking on nothing but air. His support is the slenderest imaginable. And yet it really is possible to walk on it.

The world is the totality of facts, not of things