"Stories you read when you're the right age never quite leave you. You may forget who wrote them or what the story was called. Sometimes you'll forget precisely what happened, but if a story touches you it will stay with you, haunting the places in your mind that you rarely ever visit."

The process of discovery in mathematics is often more important than the result itself.

Treating a person to a meal never fails， and is so easy to do. It’s powerful with old friends and a great way to make new friends.

"Education is the most powerful weapon which you can use to change the world."

The less secure a man is, the more likely he is to have extreme prejudice.

坚持是数学研究的关键，许多伟大的成果来自于长期的奋斗。

The power of mathematics lies in its ability to simplify the complex.