Language disguises thought.

Roughly speaking: to say of two things that they are identical is nonsense, and to say of one thing that it is identical with itself is to say nothing.

The gramophone record, the musical thought, the score, the waves of sound, all stand to one another in that pictorial internal relation, which holds between language and the world.To all of them the logical structure is common.(Like the two youths, their two horses and their lilies in the story. They are all in a certain sense one.)

Logic takes care of itself; all we have to do is to look and see how it does it.

There can never be surprises in logic.

But all propositions of logic say the same thing. That is, nothing.

The solution of logical problems must be neat for they set the standard of neatness.

It used to be said that God could create anything except what would be contrary to the laws of logic. The truth is that we could not say what an "illogical" world would look like.

What we cannot speak about we must pass over in silence.