"Who is John Galt?"

"John Galt spent years looking for it. He crossed oceans, and he crossed deserts, and he went down into the forgotten mines, miles under the earth. But he found it on the top of a mountain. It took him ten years to climb that mountain. It broke every bone in his body, it tore the skin off his hands, it made him lose his home, his name, his love. But he climbed it. He found the fountain of youth, which he wanted to bring down to men. Only he never came back."

"Why didn't he?" she asked.

"Because he found that it couldn't be brought down."

from Atlas Shrugged (p. 178) by Ayn Rand