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.

It would strike me as ridiculous to want to doubt the existence of Napoleon; but if someone doubted the existence of the earth 150years ago, perhaps I should be more willing to listen, for now he is doubting our whole system of evidence.

In philosophy it is always good to put a question instead of an answer to a question. For an answer to the philosophical question may easily be unfair; disposing of it by means of another question is not.

An image is not a picture, but a picture can correspond to it.

It is love that believes the resurrection.

Telling someone something he does not understand is pointless, even if you add that he will not be able to understand it.

Philosophy is not a body of doctrine but an activity. ...Without philosophy thoughts are, as it were, cloudy and indistinct: its task is to make them clear and to give them sharp boundaries.