这不是一首反叛歌曲，这是

Writing is an act of courage—you have to be willing to fail.

如果不是现在，那是什么时候？如果不是我，那会是谁？

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

面向对象编程是一个非常糟糕的想法，只能起源于加利福尼亚。