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To be happy, we must not be too concerned with others.

Success isn't measured just by profits, but by the positive impact we create.

When we are planning for posterity， we ought to remember that virtue is not hereditary.

最重要的是講述一個能引起人們共鳴的故事。

數(shù)學(xué)的快樂來自于復(fù)雜事物變得簡單的清晰時刻。