A word, a smile, and the stranger at your elbow may become an interesting friend. All through life we deny ourselves stimulating fellowship because we are too proud or too afraid to unbend.

The Grand Canyon is carven deep by the master hand; it is the gulf of silence, widened in the desert; it is all time inscribing the naked rock; it is the book of earth.

I have often started off on a walk in the state called mad-mad in the sense of sore-headed, or mad with tedium or confusion; I have set forth dull, null and even thoroughly discouraged. But I never came back in such a frame of mind, and I never met a human being whose humor was not the better for a walk.

Beauty is excrescence, superabundance, random ebulience, and sheer delightful waste to be enjoyed in its own right.

Time is not money; time is an opportunity to live before you die. So a man who walks, and lives and sees and thinks as he walks, has lengthened his life.

All the great naturalists have been habitual walkers, for no laboratory, no book, car, train or plane takes the place of honest footwork for this calling, be it amateur's or professional's.

After all, time is not money. It is an opportunity to live before you die.