Mathematics is the poetry of logical ideas.

Change starts with a vision, but it’s persistence that turns it into reality.

【讲解】：君子如果不自重，就没有威严，(别人也不会尊重你)，学习的知识就不会扎实。做人重要的是讲求忠诚，守信用。不要同不如自己的人交朋友。如果犯了错误，就不要害怕改正。

最好的还在后头。

"The security of quantum communication comes from the laws of physics, not from computational complexity."

不要担心别人会做什么。预测未来的最好方法就是去创造未来。

Take an object. Do something to it. Do something else to it.

If you get all the facts, your judgment can be right; if you don't get all the facts, it can't be right.