《隋书·列传·卷十》
杨勇曾经在蜀铠上雕饰花纹，高祖见了有些不高兴，怕他会渐渐地形成奢侈的习性，因而告诫他说： 我听说天道不唯亲，只给有德之君，纵观前代帝王，没有一个能靠奢侈豪华而得到天下长久的。
勇尝文饰蜀铠，上见而不悦，恐致奢侈之渐，因而诫之曰： 我闻天道无亲，唯德是与，历观前代帝王，未有奢华而得长久者。
once embellished his Shu armour. Upon seeing this, Gaozu was not pleased, fearing that he would gradually develop extravagant habits, and so admonished him: “I heard that the will of heaven does not favour one’s relatives, but only the virtuous emperors, and that not one of the emperors of the past has gained the world for long through extravagance and luxury.