My sailing system set sail, make it fast, no thoughts of energy or velocity, loll back, let boat drift.

The only thing that interferes with my learning is my education.

What I'm really interested in is whether God could have made the world in a different way; that is, whether the necessity of logical simplicity leaves any freedom at all.

A forced faithfulness is a bitter fruit for all concerned.

We come now to the question: what is a priori certain or necessary, respectively in geometry (doctrine of space) or its foundations? Formerly we thought everything; nowadays we think nothing. Already the distance-concept is logically arbitrary; there need be no things that correspond to it, even approximately.

Conscious man, to be sure, has at all times been keenly aware that life is an adventure, that life must, forever, be wrested from death.

Force always attracts men of low morality.