傲不可长,欲不可纵,乐不可极,志不可满。
【释义】:骄傲不应过度,欲望不能放纵,享乐不能极端,志向不宜自满。
不只是国家有染的问题,对士而言也有受到熏染的问题。 
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.