If we glance at the most important revolutions in history, we see at once that the greatest number of these originated in the periodical revolutions of the human mind.

All situations in which the interrelationships between extremes are involved are the most interesting and instructive.

To judge a man means nothing more than to ask: What content does he give to the form of humanity? What concept should we have of humanity if he were its only representative?

Joy mingled with sadness, even with grief, is the deepest human joy. It winds itself about the soul with indescribable sweetness, with a dim but unerring sense for what will some day be born of it.

Only what we have wrought into our character during life can we take with us.

Results are nothing; the energies which produce them and which again spring from them are everything.

War seems to be one of the most salutary phenomena for the culture of human nature; and it is not without regret that I see it disappearing more and more from the scene.