Look, most of your escape routes don't work

大多数人的思路都没法解决问题
because you're trying to

因为你一直在尝试
get a positive number to equal a negative number.

让负值和正值相等
Yes?

请讲
Thank you.

谢谢你
I didn't know I was going home for lunch,

我差点以为不能回家吃午饭了
because I was not going to proceed

因为我打算在听到正确答案之前
until I got the right answer.

我是不会继续下去的
The right answer is, when you define a potential,

正确的答案是当你定义一个势能时
there is a freedom to add a constant to the definition of the potential.

可以加上任意一个恒量来定义势能
If you look at every theorem, everything I derived,

你看看所有的定理所有推导
including the stuff I've hidden under the board,

包括黑板后面的东西