每个人都有权拥有自己的观点，但没有人有权在事实上出错。
Every man has a right to his own opinion, but no man has a right to be wrong in his facts.
To look up at the heights of heaven and to admire the stars.
没有执行的创新只是空想。
"I think that mathematicians are much more like artists than they are like scientists."