Do not despise your own place and hour. Every place is under the stars, every place is the center of the world.

The budget for nuclear forces in the United States is on the order of $25 billion or so. That includes warheads, delivery systems, command and control; does not include environmental clean-up, which is another maybe $10 billion or so. So that's about 5% of the U.S. military budget.

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.

If the October days were a cordial like the sub-acids of fruit, these are a tonic like the wine of iron. Drink deep or be careful how you taste this December vintage. The first sip may chill, but a full draught warms and invigorates.

If you want to see birds, you must have birds in your heart.

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

Happiness comes most to persons who seek it least and think least about it. It is not an object to be sought, it is a state to be induced. It must follow and not lead. It must overtake you, and not you overtake it.