Those who gave away their wings are sad not to see them fly. – Antonio Porchia, Voces, 1943, translated from Spanish by W.S. Merwin

Lovers of air travel find it exhilarating to hang poised between the illusion of immortality and the fact of death. – Alexander Chase, "Perspectives," 1966

When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return. – Leonardo Da Vinci (Thanks, Tommy)

The bluebird carries the sky on his back. – Henry David Thoreau