War can protect; it cannot create.

Human life is driven forward by its dim apprehension of notions too general for its existing language.

The worst that happened to men of science was that Galileo suffered an honorable detention and a mild reproof, before dying peacefully in his bed.

No one who achieves success does so without acknowledging the help of others. The wise and confident acknowledge this help with gratitude.

The tragedy of the world is that those who are imaginative have but slight experience, and those who are experienced have feeble imaginations.

Education should turn out the pupil with something he knows well and something he can do well.

Nature, even in the act of satisfying anticipation, often provides a surprise.