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

If we take science as our sole guide, if we accept and hold fast that alone which is verifiable, the old theology must go.

I am not going to advocate ... the abandoning of the improved modes of travel; but I am going to brag as lustily as I can on behalf of the pedestrian, and show how all the shining angels second and accompany the man who goes afoot, while all the dark spirits are ever looking out for a chance to ride.

The five original nuclear weapon states I mentioned - U.S., Britain, France, China, and Russia - under the NPT have committed to the achievement of the elimination of their nuclear arsenals through good faith negotiations of nuclear disarmament - that's Article Six of the treaty.

Maybe that will happen with other countries as well. And so, that's why one of the things that groups like mine that work for the elimination of nuclear weapons and work for their marginalization in the meantime, we say you have to diminish the political value that's attached to nuclear weapons in order to give them less (kind of) desirability in the eyes of governments that do not now have them, and thus to help stop their spread.

The Kingdom of Heaven is not a place, but a state of mind.

Every walk to the woods is a religious rite, every bath in the stream is a saving ordinance. Communion service is at all hours, and the bread and wine are from the heart and marrow of Mother Earth. There are no heretics in Nature's church; all are believers, all are communicants. The beauty of natural religion is that you have it all the time; you do not have to seek it afar off in myths and legends, in catacombs, in garbled texts, in miracles of dead saints or wine-bibbing friars. It is of today; it is now and here; it is everywhere.