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.

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.

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.

The life of nature we must meet halfway; it is shy, withdrawn, and blends itself with a vast neutral background. We must be initiated; it is an order the secrets of which are well guarded.

The place to observe nature is where you are.

The five original nuclear weapon states I mentioned - U.S., Britain, France, China, and Russia - under the NPT have committed to the achievement of the elimination of their nuclear arsenals through good faith negotiations of nuclear disarmament - that's Article Six of the treaty.

When I look up into the starry heavens at night and reflect upon what it is I really see there, I am constrained to say, ´there is no god´.