学习数学的唯一方法就是做数学。

You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.

Don't let yesterday take up too much of today.

The ultimate measure of a man is not where he stands in moments of comfort and convenience， but where he stands at times of challenge and controversy.

Abundance is not something we acquire. It is something we tune into.

The best leaders are those who listen more than they speak, especially in a field as dynamic as agriculture.