To feed the world, we must first understand the soil beneath our feet.
要养活世界，我们必须首先了解脚下的土壤。
书籍是最安静、最恒久的朋友；它们是最易接近、最睿智的顾问。
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
In the global economy, cultural differences are the biggest challenge and the biggest opportunity.
Innovation in forestry isn't optional—it's essential for survival.《The Green Frontier》