Tell me a story out of thin air.

Don't even give up a hair-very stingy.

Heart and soul originated from Mencius. Mozi in the Warring States period was a representative figure of Mohism. He opposed the cruel war and advocated "universal love" and "non-attack". At that time, Yang Zhu was against Mozi, trying to oppose "universal love" and advocating "for me". One day, Mozi's student Bird Slip met Yang Zhu and asked rudely, "Would you like to pull out a hair on your body to benefit the whole world?" Yang Zhu shook his head and said, "The problems in the world can never be solved by one hair." Bird slide retorted, "this is just a hypothesis. If you can set the world by pulling out a hair, will you? " Yang Zhu kept silent after hearing this. Mencius criticized Yang Zhu for this matter: "Yang Zhu advocates' for me'. If pulling out a hair on his body is beneficial to the world, he will never do it; Mozi advocates' universal love' If it is good for the world, he will do it even if he shaves his head and wears his feet out. Later, people used "penniless" to describe a very selfish and stingy person.