善意是耳聋者可以听懂、目盲者亦能看见的语言。
The only way to do great work is to love what you do.
In mathematics, you don't understand things. You just get used to them.
"The mind is not a structure but a process."
风险不在于我们目标太高而失败，而在于我们目标太低而成功。