译文:在兵败的时候接受任务,在危机患难之间奉行使命,到如今已经有二十一年了。
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
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。
沉默从来不是空的;它充满了可能性。