Unless science is controlled by a greater moral force, it will become the Antichrist prophesied by the early Christians.

Real freedom lies in wildness, not in civilization.

Isn't it strange that we talk least about the things we think about most?

Why should anyone think a white skin superior in evaluating the qualities of human life? I did not really admire a white skin so much myself. Did I not prefer the brown skin that came with exposure to the sun?

Lying under an acacia tree with the sound of the dawn around me, I realized more clearly the facts that man should never overlook: that the construction of an airplane, for instance, is simple when compared [with] a bird; that airplanes depend on an advanced civilization, and that were civilization is most advanced, few birds exist. I realized that If I had to choose, I would rather have birds than airplanes.

I realized that the future of aviation, to which I had devoted so much of my life, depended less on the perfection of aircraft than on preserving the epoch-evolved environment of life, and that this was true of all technological progress.

Man must feel the earth to know himself and recognize his values. God made life simple. It is man who complicates it.