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.

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.

Wind, weather, power, load - gradually these elements stop churning in my mind. It's less a decision of logic than a feeling, the kind of feeling that comes when you gauge the distance to be jumped between two stones across a brook. Something within you disengages itself from your body and travels ahead with your vision to make the test. You can feel it try the jump as you stand looking. Then uncertainty gives way to the conviction that it can or can't be done.

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.

One boy's a boy, two boys are half a boy; three boys are no boy at all.

I realized that If I had to choose, I would rather have birds than airplanes.

[I] grew up as a disciple of science. I know its fascination. I have felt the godlike power man derives from his machines.