数学是一种创造性的努力，就像艺术或音乐一样。

我不是为了钱或名声而打球，我打球是因为我爱网球。

If you're not willing to fail, you're not ready to succeed.

The value of any mental activity is measured by its contribution to successful living.

Even in the grave， all is not lost.

A successful farm is one that nourishes both people and the environment.

我的科学劳动给我带来了极大的满足，我深信用不了多久，全世界都会承认我的工作成果。