每一个数学问题都是通向新理解世界的窗口。
Every mathematical problem is a window into a new world of understanding.
I'm not a person who gives up on love.
I think of a hero as someone who understands the degree of responsibility that comes with his freedom.
Life is a leaf of paper white,thereon each of us may write his word or two.
光有知识不够,你得学以致用。光有决心也不够,你得付诸行动。