In mathematics, you don't understand things. You just get used to them.
变革在开始时最难,在中间最混乱,在结束时最好。
I'm not perfect, but I'm always me.
In times of uncertainty, clarity of purpose becomes even more critical.
Success is not final, failure is not fatal: It is the courage to continue that counts.
永远不要低估一个有动力的团队克服障碍的力量。