translation.en: And all of you know of at least one example of a famous law: Einstein's famous equation, E=MC2, which tells us what the relationship is between energy and mass.
translation.zh: 你们大概都知道一个著名的法则： 爱因斯坦的著名等式，E=mc^2， 它告诉了我们能量和 质量的关系。