技术没有捷径，只有不断积累和突破。

People change and forget to tell each other.

I don't want to be a product of my environment. I want my environment to be a product of me.

When we are planning for posterity， we ought to remember that virtue is not hereditary.

"The function of thought is to guide action."

真正的科学进步需要创造力和纪律性。

Always look at what you have left. Never look at what you have lost.