如今网络上到处都是免费的教育资源，真正稀缺的是对学习的渴望。

I'm not a girl, not yet a woman.

You can't be that kid standing at the top of the waterslide, overthinking it. You have to go down the chute.

性能的关键在于优雅，而不是大量的特殊情况。