The president that I work for, I always saw him trying to get first to the best policy based on his principles.

我辅佐的这位总统，我总会看见他努力根据自己的原则,规划出最好的政策。

普林斯顿公开课 - 国际座谈会课程节选

What became of the principle "better to save five lives even if it means sacrificing one?"

我们“牺牲一人保全五人“的这条原则,到底出了什么问题呢“

耶鲁公开课 - 公正课程节选

Well you do that by this Watson-Crick base pairing, so I know if I have I know what messenger RNA to make from that because I have to satisfy these base pairing rules.

依据的是沃森克里克碱基互补配对原则,如果给我一个ACGCGA的序列,就能知道转录出的mRNA会是什么,因为我必须满足碱基配对原则

耶鲁公开课 - 生物医学工程探索课程节选