Philosophy, as we use the word, is a fight against the fascination which forms of expression exert upon us.

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

Uttering a word is like striking a note on the keyboard of the imagination.

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.

Our greatest stupidities may be very wise.

To understand a sentence means to understand a language. To understand a language means to be master of a technique.

Our civilization is characterized by the word "progress." Progress is its form rather than making progress being one of its features. Typically it constructs. It is occupied with building an ever more complicated structure. And even clarity is sought only.