《韩非子·外储说右下》
这样宫内就没有年长而不及时出嫁的女子，宫外也没有无妻的成年男子。
则内无怨女，外无旷夫。
In this way, there were no elderly women who did not get married in time in the palace, and there were no adult men who did not have wives outside the palace.