I think it was the invention of probability theory that really started it and that's why I think theory is very important in finance.

我认为是概率论的诞生,真正促生了保险业,那也是为什么,我认为理论对于金融来说非常重要

耶鲁公开课 - 金融市场课程节选

This invention was very important because it stopped people from canceling.

这是一项非常重要的创新,因为它有效地防止了人们取消保单

耶鲁公开课 - 金融市场课程节选