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數學是提出正確問題然后找到答案的藝術。

The child is a reality in himself, and not merely a transitional being.

寫作是一種活兩次的方式，既活在當下又活在回憶中。

True architecture emerges from constraints.

We must be realistic about the pace of change. The world will need oil and gas for decades to come, even as we invest in lower-carbon solutions.