He who lives in the present lives in eternity.

I'm doing philosophy like an old woman, first I'm looking for my pencil, then I'm looking for my glasses, then I'm looking for my pencil again.

How small a thought it takes to fill a life.

Philosophy is a battle against the bewitchment of our intelligence by means of language.

Here the term 'language-game' is meant to bring into prominence the fact that the speaking of language is part of an activity, of a form of life.

Whereof one cannot speak, thereof one must be silent.

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.