In 1962, President John F. Kennedy famously said, "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." It was hard, but we did it. Just 12 years after Russia launched the first man-made satellite, Sputnik, into space, America answered the challenge and landed a man on the Moon.
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机译：1962年，约翰·肯尼迪（John F. Kennedy）总统曾有句著名的话：“我们选择在这十年中去月球去做其他事情，不是因为它们容易，而是因为它们很难。”很难，但是我们做到了。俄罗斯将第一颗人造卫星Sputnik发射到太空仅12年后，美国就迎接了挑战，并将一颗人降落在月球上。
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