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.
He who knows only his own side of the case knows little of that.
只有不断学习,才能不断进步。
生活是世界上最罕见的事,大多数人只是存在而已。