Science ... in other words, knowledge-is not the enemy of religion; for, if so, then religion would mean ignorance. But it is often the antagonist of school-divinity.

Success. Is not the position where you are standing, but which direction you are going.

Systems die; instincts remain.

Every now and then a man's mind is stretched by a new idea or sensation, and never shrinks back to its former dimensions.

Our dead brothers and sisters still live for us and bid us think of life, not death-of life to which in their youth they lent the passion and glory of Spring. As I listen, the great chorus of life and joy begins again, and amid the awful orchestra of seen and unseen powers and destinies of good and evil, our trumpets sound once more a note of daring, hope, and will.

Certitude is not the test of certainty.

The very minute a thought is threatened with publicity it seems to shrink towards mediocrity.