It's impossible for me to say one word about all that music has meant to me in my life. How, then, can I hope to be understood?

What is left over if I subtract the fact that my arms goes up from the fact that I raise my arm?

A philosopher always finds more grass to feed upon in the valleys of stupidity than on the arid heights of intelligence.

We could present spatially an atomic fact which contradicted the laws of physics, but not one which contradicted the laws of geometry.

Logic must look after itself. In a certain sense, we cannot make mistakes in logic.

A new word is like a fresh seed sown on the ground of the discussion.

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