This design is based on an anecdote from the childhood of the Chinese Northern Song 

dynasty politician and scholar Sima Wengong.

There is a very precious water jar.

Children are playing around it.

However, one of them accidentally fell into the water tortoise.

One of the children immediately broke the jar with a large stone and saved the fallen child.

No matter how precious something is, what is more precious than it is human life. 

This picture teaches the preciousness of life.