数学的目标不是解决问题,而是理解问题。
概率论归根结底不过是常识的微积分化。
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天天向前走,即便千万里路,也不嫌远;常常动手做,纵有千万件事,也不畏难。
The art of being wise is the art of knowing what to overlook.
The poor dream all their lives of getting enough to eat and looking like the rich. And what do the rich dream of? Losing weight and looking like the poor.