活着就是被标记。活着就是改变，获得故事的话语，这是我们凡人真正知道的唯一庆祝。
To live is to be marked. To live is to change, to acquire the words of a story, and that is the only celebration we mortals really know.
Have you given any thought to your future？
On earth there is nothing great but man；in the man there is nothing great but mind.
当经济学以严谨和透明的方式帮助我们解决现实世界的问题时，它处于最佳状态。
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.