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The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

The principal object of management should be to secure the maximum prosperity for the employer, coupled with the maximum prosperity for each employee.

君子有三種事應該加以警戒：年輕的時候，血氣還沒有固定，力戒貪戀女色；到了壯年時期，血氣正旺盛，力戒逞強好斗；到了老年時期，血氣已經衰弱，力戒貪得無厭。