Look underfoot. You are always nearer to the true sources of your power than you think. The lure of the distant and the difficult is deceptive. The great opportunity is where you are. Don't despise your own place and hour. Every place is the center of the world.

If I were to name the three most precious resources of life, I should say books, friends, and nature.

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

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

The rocks have a history; gray and weatherworn, they are veterans of many battles; they have most of them marched in the ranks of vast stone brigades during the ice age; they have been torn from the hills, recruited from the mountaintops, and marshaled on the plains and in the valleys; and now the elemental war is over, there they lie waging a gentle but incessant warfare with time and slowly, oh, so slowly, yielding to its attacks!

I still find each day too short.

The U.S. had about 10,000 nuclear warheads. It is estimated that the U.S. is heading towards having 6,000 nuclear warheads in the year 2012.