He learned to run on his front legs until he was tired.

VOA: special.2009.01.24

So this program, if you run it based on intuition or little cheat sheets in front of you, what is this program ultimately going to do for me?

所以这个程序，如果你按照你的直觉,或你们面前的备忘单来执行它，这个程序最终会为我做什么？

哈佛公开课 - 计算机科学课程节选

We can't stand against them anymore and when you start running, the only thing the guys who are left up front can do is run.

我们打不过他们了,而你开始逃跑,留在前面的人唯一能做的也是逃跑

耶鲁公开课 - 古希腊历史简介课程节选