Loneliness is a lifelong companion, an established fact. Instead of denying it, fighting it, and avoiding it needlessly, you’d better accept it, let it protect you from going home in the crowd, and let it accompany you to breakfast on Saturday morning and tidy up the sunshine.

It is best to act with confidence, no matter how little right you have to it.

如果你认为你理解了量子力学，那么你并没有真正理解量子力学。