You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models. You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your mind.

可持续性不是一种趋势，而是乳制品农业的未来。

The best way to predict the future is to create it.

Data without action is just noise; farmers need tools, not just information.

对自然的研究是永恒的乐趣。