There are different opinions about the reasons why the rich Americans are keen on charity. To sum up, there are several points: First, it is greatly influenced by religion. Before the concept of charity in the modern sense appeared, charity came from religious belief. Many rich Americans believe that people's ability to make money is given by God, and the rich should help the poor according to the teachings. Secondly, it is a social culture. Americans believe that leaving great wealth to future generations will deprive them of their creativity and enterprising spirit. A consultant once said to Rockefeller, "Your property is getting bigger and bigger, and there will be an avalanche. You must try to stop it. You must make it spread faster than it grows. If you don't do this, it will' squash' you and your descendants! " Third, because of the disparity between the rich and the poor, the rich have been strongly criticized by the society. Under pressure, they had to change people's views on them through donations. In addition, they don't want social unrest or even disintegration. Fourth, there are also some "righteous acts" of the rich Americans, the purpose of which is to reduce or exempt taxes, make a name for themselves and "create" a sense of accomplishment.