We made a big bet against Internet stocks in 1999 and 2000 that was very profitable for the University.

999年和2000年我们大幅做空互联网股票,为学校赚得了很多利润

耶鲁公开课 - 金融市场课程节选

In 1999 he taught the first positive psychology class at Harvard, one of the first in the world.

999年，他首次在哈佛开设了本课程，在全球范围内也是首批。

哈佛公开课 - 幸福课课程节选

But then I came to Yale in 1999.

999年我回到耶鲁。

耶鲁公开课 - 新约课程节选