不算过错，有多少人为此蒙蔽良心；无可奈何，有多少体面以此为借口。

"Every person has a story worth telling, and every story has a lesson worth learning."

"The future belongs to those who believe in the beauty of their dreams."

Theorems are the milestones of mathematics.

The key to managing complexity is to focus on the interfaces between components, not their implementations.

历史不仅仅是过去的故事，它也是现在的镜子和未来的窗口。

Words are, of course, the most powerful drug used by mankind.