In order to be able to set a limit to thought, we should have to find both sides of the limit thinkable (i.e. we should have to be able to think what cannot be thought).
Our greatest stupidities may be very wise.
What we cannot speak about we must pass over in silence.
The world is the totality of facts, not of things
Logic takes care of itself; all we have to do is to look and see how it does it.
When one is frightened of the truth then it is never the whole truth that one has an inkling of.