The atmosphere of our time is fast being cleared of the fumes and deadly gases that arose during the carboniferous age of theology.

The U.S. had about 10,000 nuclear warheads. It is estimated that the U.S. is heading towards having 6,000 nuclear warheads in the year 2012.

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

He who marvels at the beauty of the world in summer will find equal cause for wonder and admiration in winter.

I do not think I exaggerate the importance or the charms of pedestrianism, or our need as a people to cultivate the art. I think it would tend to soften the national manners, to teach us the meaning of leisure, to acquaint us with the charms of the open air, to strengthen and foster the tie between the race and the land. No one else looks out upon the world so kindly and charitably as the pedestrian; no one else gives and takes so much from the country he passes through.

All sounds are sharper in winter; the air transmits better. At night I hear more distinctly the steady roar of the North Mountain. In summer it is a sort of complacent purr, as the breezes stroke down its sides; but in winter always the same low, sullen growl.

You cannot cause disproportionate damage to the environment; you cannot harm neutral states. The court said that the threat or use of nuclear weapons is generally contrary to the international law of armed conflict.