[Invading Iraq] is not the best way to make a safer world in which the United States would be a responsible partner, but it also goes against the role of law in the United States.

Travel and society polish one, but a rolling stone gathers no moss, and a little moss is a good thing on a man.

A man’s life may stagnate as literally as water may stagnate, and just as motion and direction are the remedy for one, so purpose and activity are the remedy for the other.

The art of nature is all in the direction of concealment.

The deeper our insight into the methods of nature . . . the more incredible the popular Christianity seems to us.

It is the life of the crystal, the architect of the flake, the fire of the frost, the soul of the sunbeam. This crisp winter air is full of it.

The pleasure and value of every walk or journey we take may be doubled to us by carefully noting down the impressions it makes upon us.