《晋书·志·第十七章》
做车轮弓箭的工匠多有伤害，木马精变怪异，造就是不曲直。
盖工匠之为轮矢者多伤败，及木为变怪，是为不曲直。
Craftsmen making wheels and bows and arrows often get hurt, the wooden horse is possessed by a spirit, appearing strange, it is no longer straight.