Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.
每个人皮肤下都住着几百个不同的人。作家的才能就是给他们各自命名、身份、个性并让他们互动。
The future belongs to those who believe in the beauty of their dreams.
"The world is a book, and those who do not travel read only one page."
The only limit to our realization of tomorrow is our doubts of today.