你停止尝试的那一刻就是你停止学习的那一刻。
花尽可能多的时间精心设计电子邮件的标题,因为这往往是人们唯一会看的内容。
It is so hard to believe because it is so hard to obey.
"History is that certainty produced at the point where the imperfections of memory meet the inadequacies of documentation."