每一本书都是一次旅程，每一次旅程都是一本书。
Every book is a journey, and every journey is a book.
Every challenge is an opportunity in disguise.
I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.
Small farms can have a big impact when given the right tools and knowledge.
最好的故事是提出问题而非解答问题的故事。
U.S. energy independence doesn't mean isolation - we're still part of global markets.