"Most people are not comfortable with the fact that, at the end of it you will test their blood and give them their HIV ."

VOA: standard.2010.06.04

In fact you do not have to kill any animals for this kind of research because we do everything in a test tube.

其实，做这种研究,你根本用不着杀害任何动物,因为试验都是在试管中进行的。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

All right. So let's test what we, in fact, know about the photoelectric effect, and before we do that actually, we're going to calculate what we would predict, so when we do the demo it will be meaningful and we can tell whether we're successful or not.

好的，我们来测试一些，我们实际上懂了,多少光电效应的东西，在我们做测试之前，我们先算一下我们能预知什么，这样我们做的测试会很有意义,并且也知道我们是否成功了。

麻省理工公开课 - 化学原理课程节选

In fact, if we test this, son of a gun.

实际上，如果我们测试这个，很讨厌的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选