过去并非固定不变，它会随着我们的重述而改变。

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

You can't manage what you don't measure.

成功不在于成为最好的，而在于始终如一地提供优质产品。

一本书可以是一个朋友、一位老师和通往另一个世界的门。