实现不可能的唯一方法就是相信它是可能的。
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
A picture is a representation, an illusion, a piece of magic, so what you see is not what you see.
"You can love someone so much...But you can never love people as much as you can miss them."
The real challenge in computer science is not to write programs, but to understand the nature of computation.