如果你想过得快乐，就把生活跟目标联系在一起，而不是跟人或物质。
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.
未来属于那些能够适应和进化的人。