To celebrate Darwin and his idea, the Smithsonian Institution's National Museum of Natural History in Washington created a special exhibit.

VOA: special.2009.12.01

The idea of risk, that economic risks can be pooled, is an intuitive one that has occurred to people throughout history.

风险理论，即认为经济风险可以分摊，是历史过程中,人们逐渐发现的理论。

耶鲁公开课 - 金融市场课程节选

The idea that I want to develop is that the history of finance is a history of discrete inventions.

我想详述的观点是,金融学的历史由一项又一项技术发明组成。

耶鲁公开课 - 金融市场课程节选

I think the idea of a stock must have been invented independently at many times in history.

我认为股票这个概念,在历史上被反复提出过多次

耶鲁公开课 - 金融市场课程节选