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If there's a book that you want to read, but it hasn't been written yet, then you must write it.

物理學家必須擁有生動的想象力，但必須受到嚴格邏輯的約束。

The book, total expansion of the letter.

The greatest glory in living lies not in never falling, but in rising every time we fall.

我認為你能給別人的最大禮物是你自己的成長。