生活是10%发生在你身上的事，90%是你如何应对它。

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

If you don’t fail now and again, you’re not trying hard enough.

字符串是一个严格的数据结构，在传递字符串的任何地方都存在很多重复的过程。它是隐藏信息的理想工具。