And one of the cases that I've talked about probably be the most controversial is where babies were born with severe problems that not gonna be compatible with what the parents and doctors judge to be a reasonable quality of life.

我所讲过的例子中,下面这个可能是最具争议的,有些婴儿一出生就有严重的生理问题,他们无法如他们的,父母和医生所愿,用有正常的生活质量。

普林斯顿公开课 - 人性课程节选

Newton says F = ma, so to make it a useful result of this problem, we know the mass of this guy.

牛顿指出 F = ma,这对于解决这个问题很有用,我们知道这个物体的质量

耶鲁公开课 - 基础物理课程节选