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.

I have discovered the secret of happiness - it is work, either with the hands or the head. The moment I have something to do, the draughts are open and my chimney draws, and I am happy.

If the October days were a cordial like the sub-acids of fruit, these are a tonic like the wine of iron. Drink deep or be careful how you taste this December vintage. The first sip may chill, but a full draught warms and invigorates.

The lure of the distant and the difficult is deceptive. The great opportunity is where you are.

Then, again, how annoying to be told it is only five miles to the next place when it is really eight or ten!

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

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.