translation.en: I want to tell you about an experiment using the candle problem, done by a scientist named Sam Glucksberg, who is now at Princeton University, US, This shows the power of incentives. He gathered his participants and said: "I'm going to time you, how quickly you can solve this problem."
translation.zh: 利用蜡烛问题 由一个现在在普林斯顿大学 叫做 Sam Glucksberg 的科学家所做的实验 这实验让我们看见动机的力量 他是这么做的。他将参与者聚集在一个房间里 告诉他们“我要开始计时。看看你们能多快解决这个问题？”