It did not happen. That was your perception. You were wrong."

VOA: standard.2010.02.10

You might very well have done some very accurate math but it doesn't matter, because you did the math in the wrong place.

你可能很好地做完了一些很精确地数学运算,但是没有关系，因为你没有做错,数学运算。

哈佛公开课 - 计算机科学课程节选

No? You are from Nanjing, did I get a detail wrong?

不对吗,你来自南京,我记错了吗

耶鲁公开课 - 金融市场课程节选