When philosophers use a word--"knowledge," "being," "object," "I," "proposition," "name"--and try to grasp the essence of the thing, one must always ask oneself: is the word ever actually used in this way in the language-game which is its original home?--What we do is to bring words back from their metaphysical to their everyday use.

In order to draw a limit to thinking, we should have to think both sides of this limit.

The world is made up of facts, not things.

A main cause of philosophical disease-an unbalanced diet: one nourishes one's thinking with only one kind of example.

I sit astride life like a bad rider on a horse. I only owe it to the horse's good nature that I am not thrown off at this very moment.

The philosophical I is not the human being, not the human body or the human soul with the psychological properties, but the metaphysical subject, the boundary (not a part) of the world.

[M]an is fulfilling the purpose of existence who no longer needs to have any purpose except to live. That is to say, who is content.