数学家的直觉和严谨的证明同样重要。
A mathematician's intuition is as important as rigorous proof.
The only thing that is truly yours is your dreams.
The wild is a place of beauty and danger. To survive, you have to respect both.
如果中原真的能消除战乱,我们两个老头子又何妨老死在戍边之地。