Only when one thinks even much more madly than the philosophers can one solve their problems.

Is it even always an advantage to replace an indistinct picture by a sharp one? Isn't the indistinct one often what we need?

What signs fail to express, their application shows. What signs slur over, their application says clearly.

The world is made up of facts, not things.

You can't think decently if you're not willing to hurt yourself

That which cannot be said must not be said. That which cannot be said, one must be silent thereof.

A picture is a model of reality.