Our greatest stupidities may be very wise.

The limits of my language means the limits of my world.

The object of philosophy is the logical clarification of thought.

Philosophers are often like little children, who first scribble random lines on a piece of paper with their pencils, and now ask an adult 'What is that?

Where our language suggests a body and there is none: there, we should like to say, is a spirit.

This sort of thing has got to be stopped. Bad philosophers are like slum landlords. It's my job to put them out of business.

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.