The world is the totality of facts, not of things

You must always be puzzled by mental illness. The thing I would dread most, if I became mentally ill, would be your adopting a common sense attitude; that you could take it for granted that I was deluded.

What can be shown, cannot be said.

Always get rid of theory private object in this way: assume that it constantly changes, but that you do not notice the change because your memory constantly deceives you.

Not how the world is, but that it is, is the mystery.

If, for example, you were to think more deeply about death, then it would be truly strange if, in so doing, you did not encounter new images.

I act with complete certainty. But this certainty is my own.