1. Hereditary said: Dragon begets dragon, phoenix begets phoenix, and the son born by mouse can make holes, from Zheng Tianya's divorce lawyer. Similarly, the popular volume 29 quoted from Pu wrote: There are deep clouds in Si 'an, dragons give birth to dragons, phoenixes give birth to phoenixes, and rats raise children along the house. In addition, Ren's "Basket of Folk Songs: Dragon gives birth to dragon, phoenix gives birth to phoenix, and mice can make holes when they are born.
2. Like father, like son. From Chapter 83 of Romance of the Three Kingdoms, there is a saying in the book "Zhan Xiaoting, the enemy of the ancient master, guards the scholar at the estuary and worships the general": The ancient master read it and sighed: "Like a tiger, like a child!" With a finger of the imperial whip, the Shu soldiers covered and killed the past together, and the Wu soldiers were defeated.
3. Shi Gui gave birth to Shi Gui, and Tong gave birth to Tong. As trees are, so are fruits. Things come from the same species. When beans are planted, seedlings are beans, and when melons are planted, seedlings are melons.
4. One side of the soil and water raises one side. A mother gives birth to nine children, even ten mothers.