General McChrystal lost his job over comments made to and in the presence of a reporter from Rolling Stone magazine.

VOA: special.2010.06.26

We have a lot of potential that over time with we fix stone of voices with being part of our culture that very often these limitations are put on top of us just like the excess stone.

但是渐渐地受到外部文化压力,像多余石料一样，把我们禁锢起来了。

哈佛公开课 - 幸福课课程节选

Agricultural villages will have existed all over the place in the late Stone Age, in the Neolithic Period, as it is known. But there is a difference and the critical difference is that a city contains a number of people who do not provide for their own support.

农业村庄在石器时代后期,以及新石器时代随处可见,但二者是有区别的,最重要的区别在于,城市能容纳,相当数量,无需自给自足的人口

耶鲁公开课 - 古希腊历史简介课程节选