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Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.

計算機科學的美在于它能夠建模并解決現(xiàn)實世界的問題。

我畫畫不是為了交流，而是為了看。