《宋书·志·卷十五》
但是汉文帝时政治清明以致天一平，四海安宁，废止守丧三年的制度而开始实行简薄的丧制，实在是不对的。
但汉文治致升平，四海宁晏，废礼开薄，非也。
However, during the reign of Emperor Wen of the Han Dynasty, the politics were clear and the world was peaceful, and it was wrong to abolish the mourning system of three years and start to implement a simplified mourning system.