The future of energy lies in the integration of traditional and renewable energy sources, not in their opposition.

跨境合作是解决全球森林砍伐的唯一途径。

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.