When a philosopher says something that is true then it is trivial. When he says something that is not trivial then it is false.

It may be true, that men, who are mere mathematicians, have certain specific shortcomings, but that is not the fault of mathematics, for it is equally true of every other exclusive occupation.

When I have clarified and exhausted a subject, then I turn away from it, in order to go into darkness again.

I have had my results for a long time: but I do not yet know how I am to arrive at them.

I am coming more and more to the conviction that the necessity of our geometry cannot be demonstrated, at least neither by, nor for, the human intellect.

Life stands before me like an eternal spring with new and brilliant clothes.