And then confronted with a new case, we found ourselves reexamining those principles, revising each in the light of the other.

当我们面临新的情况时，我们重新检验这些原则，根据新的情况修正这些理由或原则。

耶鲁公开课 - 公正课程节选

That's why molecular biology, one of the reasons why it's turned out to be such a powerful tool, because if you can think creatively you can find all different ways to using these very simple principles to recombine molecules, to make unique new DNA sequences.

这就是分子生物学,如此有用的原因之一,因为如果你有创造力,你可以用各种方法,运用这些简单的原理来重组分子,创造独特的DNA新序列

耶鲁公开课 - 生物医学工程探索课程节选