The computer is a tool, not a substitute for thinking.
人的一生,必然要经过苦、乐磨炼;在苦难中练就的幸福,才最为长久。
"In the end, we will remember not the words of our enemies, but the silence of our friends."
要成为一个好的数学家,你需要既有直觉又有严谨。