Stay humble, stay hungry.

"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."

"Courage is not the absence of fear, but the triumph over it."

做我该做的事。

代数是人类创造的一种智力工具，用于清晰地表达世界的数量关系。

害怕失败的人，注定不会成功。