The beauty of the world has two edges, one of laughter, one of anguish, cutting the heart asunder.

解决数学问题的过程往往比解决方案本身更重要。

Every algorithm tells a story, not just of the problem it solves, but of the ingenuity and creativity of its creator.

The past is a mirror that reflects the present.

The most hateful torment for men is to have knowledge of everything but power over nothing.

上帝对人类的唯一要求是一颗平静的心。