"I don't know why we are here, but I'm pretty sure that it is not in order to enjoy ourselves."

"The limits of the world are also my limits."

"Not to understand a grammar is to be unable to understand an idiom."

"If one tried to advance theses in philosophy, it would never be possible to debate them, because everyone would agree to them."

"My fundamental conception is that the 'logical constants' are not representatives; that there can be no representatives of the logic of facts."