Small-cap stocks are tougher to price than large-cap stocks, so there's a 4.7% differential, first to third quartile.

小盘股比大盘股更难定价,第一和第三个四分位数的差距有4.7%

耶鲁公开课 - 金融市场课程节选

We try to trick people, for instance, into believing that we're tougher, smarter, sexier, more reliable, more trustworthy and so on, than we really are.

比如，我们总是试着去欺骗他人，使他人相信我们比实际更加,强壮，聪明，性感，更加可靠或是更加值得信赖等等。

耶鲁公开课 - 心理学导论课程节选

If you want a slightly tougher book, more rigorous book, try Joel Watson's book, Strategies.

要是你想要一本更难更有挑战的,试试乔尔?沃森的《策略》

耶鲁公开课 - 博弈论课程节选

They were bigger, they were stronger, they were tougher, they were faster, they were more beautiful, they lived longer. Those were the great old days and then there's us, we, poor miserable wretches.

那时的人们更高大,更强壮,更顽强,他们速度更快,长得更帅,活得更长,这就是那些伟大的往昔岁月,之后就出现了穷苦悲惨可怜的希腊人

耶鲁公开课 - 古希腊历史简介课程节选

You're a tougher person than I am.

你比我更强壮。

耶鲁公开课 - 心理学导论课程节选