I had been told from school onwards that the best definition of a human being was man the tool-maker - yet I had just watched a chimp tool-maker in action.

我从念书的时候就一直被教导人类最好的定义就是能够制造工具——但是我却观察到一只猩猩制造工具的过程。

youdao

The toolmaking observation was the most epochal of the three, causing a furor within anthropological circles because "man the toolmaker" held sway as an almost canonical definition of our species.

工具制作行为的观测在这三个观测结果中最具有划时代意义，它在恪守“人类才是唯一的工具制造者”的人类学研究圈中激起了轩然大波。

youdao

A wise man once told me that the definition of business insanity is to do the same thing this year as you did last year and expect a different result.

一个智者曾经告诉我什么叫(商业上的)二b。二b就是每年都去做和去年一样的事，却期待着能有不同的结果。

youdao

Four years ago, Bill Clinton signed the Defence of Marriage Act, limiting the federal definition of marriage to that between a man and a woman.

ECONOMIST: The wedding waltz

That doesn't mean we should change the definition of marriage, which is between a man and a woman.

BBC: Budget 2013: No tax break for married couples

"Our position is that the traditional definition of marriage shouldn't be altered between a man and a woman, " Catholic Bishop Barry Jones said.

BBC: New Zealand to vote on legalising gay marriage