I'm not worried about what other people think. I just go out there and do my best.
制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子,其中一些中子将再次产生裂变。
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
粒子的概念只是一个近似,在经典极限下有效。
To accomplish great things, we must not only act, but also dream; not only plan, but also believe.
Is there such a thing as a cheerful pessimist? That's what I am.