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我一直認為寫作是一種思考的方式，而不僅僅是表達思想的方式。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

理解自然的道路往往是通過統一看似不同的概念。

Don‘t cry because it is over， smile because it happened。

There is no such thing as a moral or an immoral book. Books are well written, or badly written.

成功的關鍵在于堅持和持續改進。