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Mathematics is the art of giving the same name to different things.

The difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.

Every tree we plant today is a legacy for future generations.

無論失敗多么艱難，只要你不停下嘗試，失敗就不是終點。

藝術家的任務不是屈服于絕望，而是為存在的空虛找到解藥。