数学的美在于它揭示隐藏的对称性和真理的能力。

I dream that my son will grow up to be a good person, a free person. I dream that someday you will return to revisit the land of our childhood. I dream that flowers will bloom in the streets again...and kites will fly in the skies!

做出伟大工作的唯一方法就是热爱你所做的事。