Remember when we were talking about pushing the fat man off the bridge, someone said, "But he didn't agree to sacrifice himself.

还记得第一讲谈到的，把胖子推下桥的例子，有人就说，但他没同意去牺牲自己啊。

耶鲁公开课 - 公正课程节选

how many would push the fat man over the bridge?

有多少人会选择把那胖子推下桥？

耶鲁公开课 - 公正课程节选

Somehow, if you could manufacture a really smooth frictionless surface, that if you took a hockey puck or something and an air cushion and you give it a push, in some idealized world, it'll travel forever.

如果你制造一个绝对光滑无摩擦的表面,然后在上面放个冰球或者别的什么,或者气垫,然后推它一下,在理想条件下,它会永远运动下去

耶鲁公开课 - 基础物理课程节选