As long as man continues to be the ruthless destroyer of lower living beings， he will never know health or peace. For as long as men massacre animals， they will kill each other.

数学是给不同事物赋予相同名称的艺术。

每个算法都讲述一个故事，不仅仅是它自己的步骤，还包括它试图解决的问题。