"I like elegance. I like art nouveau; a stretched line or curve. These things are very much in the foreground of my work."

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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 evolve.

— Gene Cernan