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Choose the life that is most useful, and habit will make it the most agreeable.
  选择最有用的生活方式,习惯会使其变得最令人愉悦。
Don't be afraid of being different, be afraid of being the same as everyone else.
数学家最好的作品是艺术,一种高度完美的艺术,像想象的最秘密的梦想一样大胆,清晰而透明。