The wave function is not a description of a single system but of an ensemble of systems.
波函数不是描述单个系统，而是描述系统的集合。
I think the most important thing in life is to love and be loved in return.
我没时间恨那些恨我的人，因为我忙着爱那些爱我的人。
When you light a candle, you also cast a shadow.
过去是唯一闻起来香甜的已逝之物。