He also searched for unusual connections between existing ideas.

VOA: special.2010.05.30

Until that point, we have no reason to really give up on our current existing ideas about what justice is.

直到完全了解，我们没有理由放弃,我们目前现存有关正义的概念。

耶鲁公开课 - 政治哲学导论课程节选

There is no basis for individual rights, or for a critique of existing ideas and institutions, if there is no base either in religion or in reason.

如果没有宗教和理性,人权以及对现有思想和制度的批判,也就没有了保障

耶鲁公开课 - 古希腊历史简介课程节选