Now, if that potential changed and it stayed changed forever, then the cell would never go back to its resting state.

如果电势变化并且不再恢复到原始电势,细胞就永远不会回到静息状态

耶鲁公开课 - 生物医学工程探索课程节选

It looks like a tautology because you're never able to show me something that moves forever at a constant velocity, because every time you don't find such a thing, I give an excuse, namely, a force is acting.

这听上去像个死循环,因为你不可能,找到永远匀速运动下去的物体,因为每当你找不到这样的物体时,我就会给出一个理由,也就是,有力作用在上面

耶鲁公开课 - 基础物理课程节选

And she described it as, think of what it's like to have a really great conversation with a friend that you wish would never end, except God's this infinitely rich friend and so the conversation ends up seeming desirable forever.

她的描述是，想象一次精彩的促膝长谈,和某个朋友，你希望它永远不会结束，上帝是位极渊博的朋友,长谈似乎充满无限魅力。

耶鲁公开课 - 死亡课程节选