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。