It is morally as bad not to care whether a thing is true or not, so long as it makes you feel good, as it is not to care how you got your money as long as you have got it.

If I were to choose the sights, the sounds, the fragrances I most would want to see and hear and smell--among all the delights of the open world--on a final day on earth, I think I would choose these: the clear, ethereal song of a white-throated sparrow singing at dawn; the smell of pine trees in the heat of the noon; the lonely calling of Canada geese; the sight of a dragon-fly glinting in the sunshine; the voice of a hermit thrush far in a darkening woods at evening; and--most spiritual and moving of sights--the white cathedral of a cumulus cloud floating serenely in the blue of the sky.

For man, autumn is a time of harvest, of gathering together. For nature, it is a time of sowing, of scattering abroad.

Nature is shy and noncommittal in a crowd. To learn her secrets, visit her alone or with a single friend, at most. Everything evades you, everything hides, even your thoughts escape you, when you walk in a crowd.

Even the lifelong traveler knows but an infinitesimal portion of the Earth's surface. Those who have written best about the land and its wild inhabitants...have often been stay-at-home naturalists...concentrating their attention and affection on a relatively small area.

A man who never sees a bluebird only half lives.

In nature, there is less death and destruction than death and transmutation.