农业的可持续性不是一种选择，而是为后代必须做的事情。
Sustainability in agriculture isn't an option—it's a necessity for future generations.
爱不仅是一种情感，它也是一门艺术。
"A great book is not one that is read, but one that reads you, revealing the depths of your own soul."
我的国家是世界，我的宗教是行善。
The office of President is great, but the man who holds it is not.
人民放在第一位，国家其次，君在最后。
经济景观是一个由不同等级的中心地组成的系统，每个中心地为特定区域服务。