I was born with a chronic anxiety about the weather.

The fuel in the earth will be exhausted in a thousand or more years, and its mineral wealth, but man will find substitutes for these in the winds, the waves, the sun's heat, and so forth.

Joy in the universe, and keen curiosity about it all - that has been my religion.

One can only learn his powers of action by action, and his powers of thought by thinking

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 United States says "We're complying. We're following the disarmament obligation. Look at the quantitative reductions that are taking place." But, since '96, there really hasn't been progress on specific commitments that have been made. Perhaps most disturbing is this: that the United States and France in particular, since 1996, have expanded the range of circumstances under which they might use - they say they might use - nuclear weapons.

Somewhat by historical happenstance the five permanent members of the UN Security Council - United States, Britain, France, Russia, and China - also were the original five countries to have nuclear weapons.