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People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed; never throw out anyone.

我一直覺得自己是個外國人，即使在自己的國家也是如此。

The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.

做出偉大工作的唯一途徑是熱愛你所做的事情。