If we can combine our knowledge of science with the wisdom of wildness, if we can nurture civilization through roots in the primitive, man's potentialities appear to be unbounded.

We cannot allow the natural passions and prejudices of other peoples to lead our country to destruction.

In wilderness I sense the miracle of life.

Consciousness grows independent of the ordinary senses.

And if at times you renounce experience and mind's heavy logic, it seems that the world has rushed along on its orbit, leaving you alone flying above a forgotten cloud bank, somewhere in the solitude of interstellar space.

Man has risen so far above all other species that he competes in ways unique in nature. He fights by means of complicated weapons; he fights for ends remote in time.

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.