I always feel at home where the sugar maple grows.... glorious in autumn, a fountain of coolness in summer, sugar in its veins, gold in its foliage, warmth in its fibers, and health in it the year round.

[T]he cold warms me—after a different fashion from that of the kitchen stove.

Culture means the perfect and equal development of man on all sides.

You cannot use [nuclear weapons] to target civilians; you cannot use them against military targets if they have indiscriminate effects on civilians in addition to the attack on the military target.

The floating vapour is just as true an illustration of the law of gravity as the falling avalanche.

The Universe is a pretty big place... And the one thing I know about nature is it hates to waste anything. So I guess I'd say if it is just us, an awful lot of space is going to waste. The earth is not alone, it is not like a single apple on a tree; there are many apples on the tree, and there are many trees in the orchard.

IT is reported of Margaret Fuller that she said she accepted the universe. "Gad, she'd better!" retorted Carlyle. Carlyle himself did not accept the universe in a very whole-hearted manner. Looking up at the midnight stars, he exclaimed: "A sad spectacle! If they be inhabited, what a scope for misery and folly; if they be not inhabited, what a waste of space!"