人类的灵魂是脆弱的东西。

一旦心灵被启蒙，就无法再次变得黑暗。

I'm not going to let anyone bring me down.

It is not the young people that degenerate,they are not spoiled till those of mature age are already sunk into corruption.

量子力学让我们能够做到经典物理学中不可能的事情。