Cách sử dụng
The expression "the salt of the earth" is used to describe someone who is very important and valuable to society. The phrase comes from the idea that salt is essential and valuable, just like these special people are essential to their community. It is usually used to describe someone who is very honest, hardworking, and dependable. For example, if someone says, "John is the salt of the earth," they mean that John is a very good person who is highly respected in the community.