He is not his equal by nature and cannot be made so by human laws or human institutions.

他们天生就不平等,更不能通过世俗的法律与制度获取平等

耶鲁公开课 - 美国内战与重建课程节选

The only people who fail 3.091 are those who choose to fail 3.091.

唯一不能通过这门课的人是,他们自己做出这样的选择。

麻省理工公开课 - 固态化学导论课程节选