These phantoms speak with human voices — friendly, vapor- like shapes, without substance, able to vanish or appear at will, to pass in and out through the walls of the fuselage as though no walls were there. At times, voices come out of the air itself, clear yet far away, traveling through distances that can't be measured by the scale of human miles; familiar voices, conversing and advising on my flight, discussing problems of my navigation, reassuring me, giving me messages of importance unattainable in ordinary life.

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.

At the end of the first half-century of engine-driven flight, we are confronted with the stark fact that the historical significance of aircraft has been primarily military and destructive.

These phantoms speak with human voices — friendly, vapor- like shapes, without substance, able to vanish or appear at will, to pass in and out through the walls of the fuselage as though no walls were there. At times, voices come out of the air itself, clear yet far away, traveling through distances that can't be measured by the scale of human miles; familiar voices, conversing and advising on my flight, discussing problems of my navigation, reassuring me, giving me messages of importance unattainable in ordinary life.

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

Aviation seems almost a gift from heaven to those Western nations who were already the leaders of their era, strengthening their leadership, their confidence, their dominance over other peoples.

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