我不相信运气，我相信努力工作。
"I don't believe in luck. I believe in hard work."
我相信书籍有改变生活的力量。
I always prefer to believe the best of everybody; it saves so much trouble.
离散数学和连续数学之间的相互作用是一些最有趣的问题所在。
If you want to understand function, study structure.
The great thing is to be in love with life.