They can--in mutual funds, it's daily liquidity, but their investors tend not to be as wide-awake.

他们可以-在共同基金中，保证日常的现金流，但是它们的投资者似乎不愿意一直保持清醒。

耶鲁公开课 - 金融市场课程节选

Why do we sleep and why don't we--why aren't we always awake?

我们为什么会睡觉,我们为什么不是一直醒着？

耶鲁公开课 - 心理学导论课程节选