Science has done more for the development of western civilization in one hundred years than Christianity did in eighteen hundred years.

Nature will not be conquered, but gives herself freely to her true lover - to him who revels with her, bathes in her seas, sails her rivers, camps in her woods, and with no mercenary ends, accepts all.

When you bait your hook with your heart, the fish always bite.

One summer day, while I was walking along the country road on the farm where I was born, a section of the stone wall opposite me, and not more than three or four yards distant, suddenly fell down. Amid the general stillness and immobility about me the effect was quite startling. ... It was the sudden summing up of half a century or more of atomic changes in the material of the wall. A grain or two of sand yielded to the pressure of long years, and gravity did the rest.

The secret of happiness is something to do.

Maybe that will happen with other countries as well. And so, that's why one of the things that groups like mine that work for the elimination of nuclear weapons and work for their marginalization in the meantime, we say you have to diminish the political value that's attached to nuclear weapons in order to give them less (kind of) desirability in the eyes of governments that do not now have them, and thus to help stop their spread.

The tendinous part of the mind, so to speak, is more developed in winter; the fleshy, in summer. I should say winter had given the bone and sinew to literature, summer the tissues and the blood.