“We cannot therefore say in logic: This and this there is in the world, that there is not.For that would apparently presuppose that we exclude certain possibilities, and this cannot be the case since otherwise logic must get outside the limits of the world: that is, if it could consider these limits from the other side also.”

“[Philosophy] must set limits to what can be thought; and, in doing so, to what cannot be thought. It must set limits to what cannot be thought by working outwards through what can be thought.”

“Logic is not a theory but a reflexion of the world.”

“The limits of my language means the limits of my world.”

“There are no subjects in the world. A subject is a limitation of the world.”

“It is not humanly possible to gather immediately from it what the logic of language is. Language disguises thought.”

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