夫劍利，則士多慓悍，倡優拙，則思慮遠也。
When the swords of a state are sharp, its warriors will be strong and aggressive, and, when its singers and actors are of poor quality, the ruler must have far-reaching objectives.
吾恐楚之謀秦也。
I fear that Chu is meditating an attack on Qin.” This is what is known as “thinking of ill fortune in times of good fortune” and “not forgetting about the possibility of destruction while in a state of safety.” King Zhao of Qin in the end attained hegemonic power due to this.7 1 Sima’s Art of Warfare 司馬兵法: an early text on warfare.
」此謂當吉念凶，而存不忘亡也，卒以成霸焉。
The Hanshu 30 “Yiwen zhi” chapter says it contained 155 items, but today only a single juan with five items is extant.
The quotation here comes from an item titled “Ren ben” 仁本.