This is earth again, the earth where I've lived and now will live once more ... I've been to eternity and back. I know how the dead would feel to live again.

If I were entering adulthood now instead of in the environment of fifty years ago, I would choose a career that kept me in touch with nature more than science. ... Too few natural areas remain; both by intent and by indifference we have insulated ourselves from the wilderness that produced us.

In honoring the Wright Brothers, it is customary and proper to recognize their contribution to scientific progress. But I believe it is equally important to emphasize the qualities in their pioneering life and the character in man that such a life produced. The Wright Brothers balanced sucess with modesty, science with simplicity. At Kitty Hawk their intellects and senses worked in mutual support. They represented man in balance, and from that balance came wings to lift a world.

Ideas are like seeds, apparently insignificant when first held in the hand. Once firmly planted, they can grow and flower into almost anything at all, a cornstalk, or a giant redwood, or a flight across the ocean. Whatever a man imagines, he can achieve.

Life's values originate in circumstances over which the individual has no control.

A certain amount of danger is essential to the quality of life.

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.