Counterpart to the knee-jerk liberal is the new knee-pad conservative, always groveling before the rich and the powerful.

Life is hard? True - but let's love it anyhow, though it breaks every bone in our bodies.

most of my wandering in the desert i've done alone. not so much from choice as from necessity - i generally prefer to go into places where no one else wants to go. i find that in contemplating the natural world my pleasure is greater if there are not too many others contemplating it with me, at the same time.

The basic science is not physics or mathematics but biology -- the study of life. We must learn to think both logically and bio-logically.

When a writer has done the best that he can do, he should then withdraw from the book-writing business and take up an honest trade like shoe repair, cattle stealing, or screwworm management.

We are preoccupied with time. If we could learn to love space as deeply as we are now obsessed with time, we might discover a new meaning in the phrase to live like men.

Doctrines like Christianity or Islam or Marxism require unanimity of belief. One dissenter casts doubt on the creed of millions.