The idea of racial inferiority or superiority is foreign to me. I can't feel inferior or superior to another man because of race, or in any way antagonistic to him. I judge by the individual, not by his race, and have always done so. I would rather have one of my children marry into a good family of any race than into a bad family of any other race.

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

God made life simple. It is man who complicates it.

No right of preference exists in favor of person, property, or business. Personal claims and ambitions must yield in favor of whatever best serves the general welfare.

Success is not measured by what a man accomplishes, but by the opposition he has encountered and the courage with which he has maintained the struggle against overwhelming odds.

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.

Then what am I - the body substance which I can see with my eyes and feel with my hands? Or am I this realization, this greater understanding which dwells within it, yet expands through the universe outside; a part of all existence, powerless but without need for power; immersed in solitude, yet in contact with all creation? There are moments when the two appear inseparable, and others when they could be cut apart by the merest flash of light.