Courage is what it takes to stand up and speak； courage is also what it takes to sit down and listen.
勇气是能站起来侃侃而谈。勇气也是能坐下来静静倾听。
世界因你的榜样而改变，而不是因你的观点。
The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.
成功来自于努力、坚持和一点点运气的结合。
Insight is the sudden comprehension of the relations among the parts of a problem.
最可持续的树是仍然屹立不倒的树。