Sustainability isn't a cost center - it's the ultimate competitive advantage.

I can resist everything except temptation.

Agriculture is the foundation of manufactures, since the productions of nature are the materials of art.

We must learn from nature how to use resources efficiently.

解释：怀揣珍宝的人，不要在晚上行走；担负大任的人，不能对敌人掉以轻心。