我们都在寻找某些东西,但我们并不总是知道它是什么。
We are all searching for something, but we don't always know what it is.
I'm not perfect, but I'm trying.
Mathematics is the art of giving the same name to different things.
函数是一种对应规则,通过它当给定任何东西(作为参数)时,可以获得另一个东西(该参数的函数值)。
Being wise means having more questions than answers.