经济增长和环境责任之间的平衡是我们这个时代的决定性挑战。
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 pursuit of happiness is not about chasing after pleasure but about cultivating meaning.