Individual insanity is immune to the consequences of collective insanity

That all men are equal is a proposition which at ordinary times no sane individual has ever given his assent.

Today I feel no wish to demonstrate that sanity is impossible. On the contrary, though I remain no less sadly certain than in the past that sanity is a rather rare phenomenon, I am convinced that it can be achieved and would like to see more of it.

No social stability without individual stability.

Every one belongs to every one else.

One must be sane to think clearly, but one can think deeply and be quite insane.