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科學不僅是理性的學科，也是浪漫和激情的學科。

有時幫助窮人的最好方式是給他們現金，讓他們自己決定如何使用它。

The best way to learn mathematics is to do mathematics.

What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.

發明是需求之母。