Ludwig Wittgenstein

Mathematics is a logical method. . . . Mathematical propositions express no thoughts. In life it is never a mathematical proposition which we need, but we use mathematical propositions only in order to infer from propositions which do not belong to mathematics to others which equally do not belong to mathematics.

Sometimes, in doing philosophy, one just wants to utter an inarticulate sound.

Propositions show what they say: tautologies and contradictions show that they say nothing.

You learned the concept 'pain' when you learned language.

Logic is not a body of doctrine, but a mirror-image of the world. Logic is transcendental.

Whereof one cannot speak, thereof one must be silent.

Man has to awaken to wonder - and so perhaps do peoples. Science is a way of sending him to sleep again.

There are, indeed, things that cannot be put into words. They make themselves manifest. They are what is mystical.

Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic

The problems are solved, not by giving new information, but by arranging what we have always known.

The face is the soul of the body.

You get tragedy where the tree, instead of bending, breaks.

A confession has to be part of your new life.

When one is frightened of the truth then it is never the whole truth that one has an inkling of.

The world is independent of my will.

Philosophy is a battle against the bewitchment of our intelligence by means of language.

A philosopher who is not taking part in discussions is like a boxer who never goes into the ring.

A philosophical problem has the form: I don't know my way about.

Like everything metaphysical the harmony between thought and reality is to be found in the grammar of the language.

If a lion could talk, we could not understand him.

Never stay up on the barren heights of cleverness, but come down into the green valleys of silliness.