控制的艺术在于处理未知的事物。

Character is not something that you are born with and can't change, like your fingerprints. It's something you weren't born with and must take responsibility for forming.

化学是在分子水平上操纵物质的艺术，而催化是其最强大的画笔。

乐观主义者认为这是所有可能世界中最好的一个。悲观主义者知道确实如此。