出自先秦《荀子·大略》。嘴巴说好话，行动做坏事，这是国家的妖孽。这是对那些口是心非、伪善无耻之徒的斥责之语。

Mental phenomena are nature's experiments in survival.

You have to fight to reach your dream. You have to sacrifice and work hard for it.

在量子力学中，观察者与被观察的系统并不是分离的。