The worst you can ever do investing is lose all of your investment--lose 100%.

在投资上,最糟糕的情况就是,把本金也全亏完,也就是亏100%

耶鲁公开课 - 金融市场课程节选

What's the very worst thing to do when your kid cries to go into bed with you and you don't want him to go into bed with you?

当你的孩子哭闹着想和你睡在一起时,最差劲的拒绝方法,会是什么呢？

耶鲁公开课 - 心理学导论课程节选