大陆的轨迹

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http://qinliwen.blogbus.com/logs/10054714.html

Nobody can be so arrogant as a young man who has just discovered an old idea and thinks it is his own.

The three hardest tasks in the world are neither physical feats nor intellectual achievements, but moral acts: to return love for hate, the include the excluded, and to say "I was wrong".

Sydney J. Harris