"Fear - It's a fine line between that and pushing yourself. You definitely reach new heights when you push. But fear is good. Fear keeps us alive. If we didn't have it, we'd be doing crazy things and getting in sticky situations."

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And pigs may fly. And we may be able to terraform and send surface populations to Mars. And Jesus may come next week anyway, so it doesn't matter one way or the other. All these crazy things run through people's minds.

— E. O. Wilson