By building certain political institutions that would channel the flawed, imperfect human nature toward the good.

通过建立某种政治机构,引导有缺陷的，不完美的人性向好的方面发展。

哈佛公开课 - 幸福课课程节选

For injustice is most dangerous when it is armed and man armed by nature with good sense and virtue may use them for entirely opposite ends.

因为非正义一旦被武装起来将最为危险,好人也可能利用,善心和美德而为非作歹

耶鲁公开课 - 古希腊历史简介课程节选

Of course, we have to also know how to plug in the numbers so we can pass all the tests, but it's good to understand the nature of the edifice set up by Newton.

当然,我们首先要知道怎么代数字,这样我们考试才能过关,但是如果能理解,牛顿的这一伟大杰作的本质就更好了

耶鲁公开课 - 基础物理课程节选