数学不是观赏性运动——你必须参与其中才能欣赏它的美。

We are not interested in the spectacular. We are interested in the specific.

To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.

人一生有两个最重要的日子，一是出生的那天，二是发现你为何而生的那天。