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We are all of us born with a unique set of potentialities, and it is our task in life to realize as many of them as possible.

The power of human cognition comes from its ability to generalize.

Tomorrow will be better for as long as America keeps alive the ideals of freedom and a better life.

在科學(xué)的道路上，失敗是常態(tài)，但每一次失敗都離成功更近了一步。