The gross heathenism of civilization has generally destroyed nature, and poetry, and all that is spiritual.

You know that I have not lagged behind in the work of exploring our grand wilderness, and in calling everybody to come and enjoy the thousand blessings they have to offer.

When we try to pick out anything by itself, we find it hitched to everything else in the universe.

There are no accidents in Nature. Every motion of the constantly shifting bodies in the world is timed to the occasion for some definite, fore-ordered end. The flowers blossom in obedience to the same law that marks the course of constellations, and the song of a bird is the echo of a universal symphony. Nature is one, and to me the greatest delight of observation and study is to discover new unities in this all-embracing and eternal harmony.

One day's exposure to mountains is better than cartloads of books. See how willingly Nature poses herself upon photographers' plates. No earthly chemicals are so sensitive as those of the human soul.

So abundant and novel are the objects of interest in a pure wilderness that unless you are pursuing special studies it matters little where you go, or how often to the same place. Wherever you chance to be always seems at the moment of all places the best; and you feel that there can be no happiness in this world or in any other for those who may not be happy there.

In every walk with nature one receives far more than he seeks.