Its conception of justice, minding one's own business, is a rejection of the democratic belief that citizens have sufficient knowledge to participate in the offices of government.

他的正义概念，只管自家事等，双双拒绝了,民主信念中认为公民有足够知识,参与政府职务的能力。

耶鲁公开课 - 政治哲学导论课程节选

Once we know enough dynamics, we can answer your question.

一旦我们了解了足够的动力学知识,就能回答你的问题

耶鲁公开课 - 基础物理课程节选

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

耶鲁公开课 - 基础物理课程节选