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.

If you think you can do it, you can.

There is an international treaty framework for this. It's the Nuclear Non-Proliferation Treaty (NPT). Most countries in the world are members of the treaty.

The rocks are not so close akin to us as the soil; they are one more remove from us; but they lie back of all, and are the final source of all. ... Time, geologic time, looks out at us from the rocks as from no other objects in the landscape.

Nature comes home to one most when one is at home. The stranger and traveler finds her a stranger and traveler also.

The simplicity of winter has a deep moral. The return of Nature, after such a career of splendor and prodigality, to habits so simple and austere, is not lost either upon the head or the heart. It is the philosopher coming back from the banquet and the wine to a cup of water and a crust of bread.

A man can fail many times, but he isn't a failure until he begins to blame somebody else.