Doing nothing is sometimes one of the highest of the duties of man.

Right is Right even if nobody does it. Wrong is wrong even if everybody is wrong about it.

I have argued with him on almost every subject in the world, and we have always been on opposite sides, without affectation or animosity... It is necessary to disagree with him as much as I do, in order to admire him as I do; and I am proud of him as a foe even more than as a friend.

All conservatism is based upon the idea that if you leave things alone you leave them as they are. But you do not. If you leave a thing alone you leave it to a torrent of change.

But they none of them create the psychological conditions in which I first saw, or desired to see, the flower.

There is nothing harder to learn than painting and nothing which most people take less trouble about learning. An art school is a place where about three people work with feverish energy and everybody else idles to a degree that I should have conceived unattainable by human nature.

Gratitude, being nearly the greatest of human duties, is also nearly the most difficult.