That at the base of all societies there has to be a labor system that will support the possibility of Plato.

在所有社会的基础上,必须有一个劳动制度,一个能供柏拉图施展他才华的制度

耶鲁公开课 - 美国内战与重建课程节选

So claims that--about the failure of conservation in children at different ages could be easily tested and systematically tested, and in fact, there's a lot of support for them.

关于不同年龄阶段的儿童,缺乏守恒概念的论断,能够很轻易的得到系统的检验,事实上,有相当多的证据支持这些论断

耶鲁公开课 - 心理学导论课程节选

So, it's very important to see how different from that the Greek idea was and what an enormous responsibility the polis was supposed to have, and of course with that, there had to be an enormous amount of support for the state by the citizens.

因此,了解希腊观点的与众不同,以及城邦应当拥有完善的政府职能,是非常重要的,当然,基于此,一个优秀的政府离不开,那些支持他们的公民

耶鲁公开课 - 古希腊历史简介课程节选