Ludwig Wittgenstein

A good simile refreshes the intellect.

The problems of philosophy are not empirical problems; they are conceptual problems.

To understand a language means to understand a form of life.

It is not our business to solve scientific problems, but to clarify the concepts that are used in science.

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

The true method of philosophy would be to say nothing except what can be said, i.e. propositions of natural science—i.e. something that has nothing to do with philosophy—and then, whenever someone else wanted to say something metaphysical, to demonstrate to him that he had failed to give a meaning to certain signs in his propositions.

Death is not an event in life: We do not live to experience death.

Our life is like our sleep – we do not know we are dreaming. We must learn to wake up.

To believe in a God means to understand the question about the meaning of life.

If we take eternity to mean not infinite temporal duration but timelessness, then eternal life belongs to those who live in the present.

The limits of the empirical world are not the limits of the mystical.

The meaning of life, i.e. the meaning of the world, we can call God.

What is good is also divine. Queer as it sounds, that sums up my ethics.

The contemplation of the world sub specie aeterni is the contemplation of it as a limited whole.

It is not by any means self-evident that logic has to do with 'truth'.

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

The world exists. That is the mystical.

What we are supplying are really remarks on the natural history of human beings.

The problems arising through a misinterpretation of our forms of language have the character of depth.

The feeling of the world as a limited whole is the mystical feeling.