The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
未经审视的生活不值得过。
True success comes from building a team that believes in the mission as much as you do.
我不想成为一棵树,我想成为它的意义。
在观测天文学中,耐心是关键,有些发现需要几十年才能确认。
记忆是连接过去与未来的桥梁。