To improve is to change； to be perfect is to change often.
欲求新，则求变。欲求完美，求常变。
心理学必须展示心灵如何服务于有机体的需求。
Was everyone else really as alive as she was?... If the answer was yes, then the world, the social world, was unbearably complicated, with two billion voices, and everyone’s thoughts striving in equal importance and everyone’s claim on life as intense, and everyone thinking they were unique, when no one was. One could drown in irrelevance.
世界上没有像大城市那样的孤独。
