Roberto Clemente once said: "Anytime you have an opportunity to make things better and you don't, then you are wasting your time on Earth."

VOA: special.2010.04.11

And it's not a la-di-dah thing where--I'll tell you, once there was a student in there who had really fantastic French and I said, "Why is your French so good?"

其实也不是那么严格要求的,我给你们讲,以前有个学生法语特好,我就问他你法语怎么这么好啊

耶鲁公开课 - 1871年后的法国课程节选

Having said that, at the same time, once you have the idea,

说了这些，同时，你一旦有了想法，

事业就是挑战 - SpeakingMax英语口语达人

and they reply in German, "Yes, I'm French," that doesn't--language doesn't necessarily tell you how people feel about their identity. Some sage once said, I don't know who it was, but I love this expression, that a language is a dialect with a powerful army.

然后他们用德语回答,"我是法国人",不一定--语言不一定能代表,对自己的身份认同,有个哲人说过,我忘了是谁,但我特喜欢这句,说语言就是有强大军队撑腰的方言

耶鲁公开课 - 1871年后的法国课程节选

Notice that once we've deleted the dominated strategies, you know I had said before about four people chose this strategy, and in here, about four people chose this strategy, but in this range 30 through 45, I had lots of people.

注意,一旦我们剔除了劣势策略,我们已知有四人选择了,在45到67之间的数,但是选择30到45的有不少

耶鲁公开课 - 博弈论课程节选