The only way to learn a new programming language is by writing programs in it.
学习一种新编程语言的唯一方法是用它编写程序。
我们从这样的假设开始：任何学科都可以以某种智力上诚实的形式有效地教给处于任何发展阶段的任何孩子。
The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.
You must feel that you already have what you want, and this feeling will bring it into your reality.
你必须感觉到你已经拥有了你想要的东西，这种感觉会将它带入你的现实。
不经过一年中最寒冷的时候，无法知道松柏是最后凋谢的；不经过艰难的考验，无法知道一个人是不是真正的君子。
每个发现都会引发新的问题。