Because we had this kind of antiseptic separation between suffering and non-suffering until we are the one suffering.

而我们一无所知，这是因为一道坚固的高墙隔开,我们和身处苦难的人们,直到我们亲自尝到苦难，这种隔离才会消失。

普林斯顿公开课 - 人性课程节选

In fact, even if you haven't had a biology class it's hard to be alive in 2008 and not know something about DNA; it's become such an important part of our lives.

实际上,即使你们没有上过生物课,也不可能活在当下却对DNA一无所知,它已经与我们的生活密不可分

耶鲁公开课 - 生物医学工程探索课程节选