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Nobody said it was easy.

成功的秘訣是熱愛你所做的事情。

The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.

一本書就像你隨身攜帶的花園。

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

A real decision is measured by the fact that you've taken a new action. If there's no action, you haven't truly decided.