《太平广记·卷二百九十六·神六》
远古以前，人们还很淳朴；到了中古，那淳朴之风江河日下，才听到有什么 六亲 之说。
太古以前，人犹至朴；中古之降，方闻各亲。
In ancient times, people were still very simple; in the Middle Ages, the simple style declined, and then I heard the saying "six relatives".