“If the heart stops for more than two minutes, you have massive brain death. There are only two minutes between our conscious world and zero. That's how fragile our consciousness is.”

“When you head on out to the Moon, in very short order, and you get a chance to look back at the Earth, that horizon slowly curves around in upon himself, and all of sudden you're looking at something that is very strange, but yet is very, very familiar, because you're beginning to see the Earth evol”