Seek the connotation joke about the tortoise.

Tortoise: We do nothing all day and are always hungry. I'm really ashamed of our turtle family's laziness.

Mother Tortoise: What do children know? Although we are lazy, we take less and have no worldly desires, so our tortoise is the longest-lived animal; Rats are busy all day and need a lot of things, so they are not only annoying, but also have a short life. Compared with them, we are clever animals. Even in many ways, we are much smarter than human beings. Which tortoise has seen a man who has lived for thousands of years? God is fair. If he enjoys many species, his life will not be long. As the saying goes, laziness makes sense.