In other words, my belief-- and I am going to back that up with research today and for the next semester-- is human nature is fixed.

换言之，那是我相信的观点-,我会用三个研究加以证明，从今天开始,直到下个学期-,人类本性是固有的。

哈佛公开课 - 幸福课课程节选

He had the idea but he didn't have the math.

他已了解其中概念,但没有数学工具加以证明

耶鲁公开课 - 金融市场课程节选