Because the father -- one of the fathers of the Industrial Revolution, Adam Smith -- was convinced that human beings were by their very natures lazy, and wouldn't do anything unless you made it worth their while, and the way you made it worth their while was by incentivizing, by giving them rewards.
因为工业革命之父—— 工业革命之父之一，亚当·史密斯， 他相信人天生就是懒惰的， 如果你不让他们觉得值， 他们宁愿闲着什么也不做， 怎么让他们觉得值呢？ 就是激励他们，给他们报酬。