As I stand out here in the wonders of the unknown at Hadley, I sort of realize there’s a fundamental truth to our nature, Man must explore and this is exploration at its greatest.
Curious that we spend more time congratulating people who have succeeded than encouraging people who have not. Problems look mighty small from 150 miles up. Science cuts two ways, of course; its products can be used for both good and evil.
Never in all their history have men been able truly to conceive of the world as one: a single sphere, a globe, having the qualities of a globe, a round earth in which all the directions eventually meet, in which there is no center because every point, or none, is center — an equal earth which all men occupy as equals.
The airman's earth, if free men make it, will be truly round: a globe in practice, not in theory. That's one small step for [a] man, one giant leap for mankind.
When I orbited the Earth in a spaceship, I saw for the first time how beautiful our planet is. Mankind, let us preserve and increase this beauty, and not destroy it! Houston, Tranquillity Base here. The Eagle has landed.
The path of a cosmonaut is not an easy, triumphant march to glory. You have to get to know the meaning not just of joy but also of grief, before being allowed in the spacecraft cabin.
Science cuts two ways, of course; its products can be used for both good and evil. But there's no turning back from science. The early warnings about technological dangers also come from science.