The actions of men are the best interpreters of their thoughts.

"We are all alone, born alone, die alone, and—in spite of True Romance magazines—we shall all someday look back on our lives and see that, in spite of our company, we were alone the whole way."

我认为，激情比脑力更重要。

晏子春秋

数学是一门活生生的学科，随着新思想的出现而不断发展。