每一个剪辑都应该有一个目的，一个存在的理由。
Entanglement is not just a curious feature of quantum theory - it is the characteristic trait of quantum mechanics.
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.