我认为你不应该觉得自己已经取得了一切成就。
The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.
Life is like a song, with highs and lows, but every part is precious.
数学中的每一个问题都是学习新东西的机会。
"To write is to give oneself a chance to live many lives."