Adapt or perish, now as ever, is nature's inexorable imperative.
Human history becomes more and more a race between education and catastrophe.
It is not reasonable that those who gamble with men's lives should not pay with their own.
The only true measure of success is the ratio between what we might have done and what we might have been on the one hand, and the thing we have made and the things we have made of ourselves on the other.
The past is but the beginning of a beginning, and all that is or has been is but the twilight of the dawn.
Humanity either makes, or breeds, or tolerates all its afflictions, great or small.