He moves not through distance, but through the ranges of satisfaction that come from hauling himself up into the air with complete and utter control; from knowing himself and knowing his airplane so well that he can come somewhere close to touching, in his own special and solitary way, that thing that is called perfection.

Your harshest truths are dreams, and your gentlest dreams are true.

Humanity is not a gift of nature, it is a spiritual achievement to be earned.

With every choice you risk the life you would have had; with every decision, you lose it.

Care about understanding and before you know it, in just a few decades, you'll have a system of thinking that gives you answers whenever you ask.

The first prerequisite of an advanced being is a sense of humor.

If we want to end this lifetime higher than we began, we can expect an uphill road.