默而识之，学而不厌，诲人不倦。
默记所学的东西，坚持学习而不厌烦，教诲别人不知疲倦。
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.
可持续经济增长的关键在于全要素生产率的持续提升。