If you don't have a legal form, if you've lost it or something, it's online.

要是你没有授权书,或者不小心弄丢了,网站上也有

耶鲁公开课 - 博弈论课程节选

instead of a stone dropping, nowadays there's a monkey that's falling down.

现在就不是丢石头了,而是有只猴子掉下来了

耶鲁公开课 - 基础物理课程节选