The only thing you can do with good advice is pass it on. It is never of any use to oneself.
技术是一种工具，而智慧在于知道如何以及何时使用它。
要说“我爱你”，首先必须能够说“我”。
数学的美在于它是永恒的，它不会改变。
Success is not a destination, but a process of continuous improvement.