"There is a time to study a map passionately, obsessively. To see where you've gone, where others have gone before you. To commit to memory every obstacle, every danger. Shakespeare had a term for this obsession: mappery. But there is a time, too, when you say, come dragons. I challenge you to find me."

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We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win.

— John F. Kennedy