对验证的渴望是可以理解的，但不能总是得到满足。
The desire for verification is understandable but cannot always be satisfied.
这就好像口渴了才挖井，人死了才找医生。
I always try to learn from my mistakes.
I'm not perfect, I don't claim to be, and I don't expect anyone to be.
量子场论的发展表明，真空不是空的，而是充满了虚粒子。