It's hard to think about a porridge and a meal, but it's hard to keep thinking about it.

There are many famous sayings that describe not spending money indiscriminately. For example, every food is hard.

Nowadays, the shortage of resources and the deterioration of the environment in the world have promoted the economy to a new realm-social economy, which aims at the happiness of most people or even all people, pursues the overall benefits and sustainable development of society, and avoids all kinds of wasteful social activities without affecting the interests of contemporary or future generations.