The main task in life is simply this: to identify and separate matters so that I can say clearly to myself which are externals not under my control, and which have to do with the choices I actually control.
译文：做将帅的切勿骄傲自大，如果骄傲自大，待人接物就会有不周道的地方，有失礼之处，一朝失礼就会众叛亲离，人心愤懑相怨。
成功需要抓住大趋势