Its principal good, its principal goal, was the education of citizens for positions of public leadership and high political responsibilities.

它的首要优点及目标，就是公民教育,训练公共领袖人员,及高标的政治责任。

耶鲁公开课 - 政治哲学导论课程节选

And you could use that rewarding quality in order to train it.

你可以利用这种奖励的性质来训练它。

耶鲁公开课 - 心理学导论课程节选