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數學不是觀賞性運動，你必須參與其中才能理解。

I want you to know， it isn’t always clear in the beginning because as I said I had been on television since I was 19 years old. But around ’94 I got really clear. So don’t expect the clarity to come all at once， to know your purpose right away.

The secret of joy in work is contained in one word - excellence. To know how to do something well is to enjoy it.

數學的快樂來自創造的行為，而不僅僅是結果。

文學是社會的良心。