Almost all of the governments have agreed that they will not acquire nuclear weapons and that they will allow the International Atomic Energy Agency to monitor their commercial and research nuclear power operations to ensure that nuclear materials - highly enriched uranium and plutonium - are not diverted to use in weapons.

I go to nature to be soothed and healed, and to have my senses put in order.

The only countries that are outside of [ Nuclear Non-Proliferation Treaty] are Israel, Pakistan, India, and North Korea withdrew in the last few years.

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

We've been in a period of relative stability and cooperation since the end of the Cold War among the world's major powers, but that may not always exist. And certainly one could even predict that there will be periods of hostility or tension ahead.

To learn something new, take the path that you took yesterday.

Man is, and always has been, a maker of gods. It has been the most serious and significant occupation of his sojourn in the world.