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We live in a world where people are judged by their worst actions, not their best.

也許每一天并不都是好的，但每一天都有一些好的東西。

"The truth is rarely pure and never simple."

The historian's task is to resurrect the voices silenced by time.

The boundary between physics and mathematics is not as clear-cut as we might think.

The highest knowledge is the knowledge of the self.

"Books are the way that we communicate with the dead. The way that we learn lessons from those who are no longer with us, that humanity has built on itself, progressed, made knowledge incremental rather than something that has to be relearned, over and over."

I prefer to supervise the whole operations of the government myself rather than entrust the public business to subordinates.