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?

If we spoke a different language, we would perceive a somewhat different world.

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.

One can mistrust one's own senses, but not one's own belief.

To believe in God is to see that life has a meaning.

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.

The logic of the world is prior to all truth and falsehood.