Everybody acts not only under external compulsion but also in accordance with inner necessity.

I know little about nature and hardly anything about men.

There is possibility in every difficulty.

We are boxed in by the boundary conditions of our thinking

From the viewpoint of a Jesuit priest I am, of course, and have always been an atheist.

How can it be that mathematics, being after all a product of human thought which is independent of experience, is so admirably appropriate to the objects of reality?

Rejoice with your family in the beautiful land of life.