Science is a capital or fund perpetually reinvested; it accumulates, rolls up, is carried forward by every new man. Every man of science has all the science before him to go upon, to set himself up in business with. What an enormous sum Darwin availed himself of and reinvested! Not so in literature; to every poet, to every artist, it is still the first day of creation, so far as the essentials of his task are concerned. Literature is not so much a fund to be reinvested as it is a crop to be ever new-grown.

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

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.

We have produced some good walkers and saunterers, and some noted climbers; but as a staple recreation, as a daily practice, the mass of the people dislike and despise walking.

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.

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.

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.