自由不仅仅是随心所欲的机会；也不仅仅是在既定选项之间选择的机会。自由首先是制定可用选择的机会，对它们进行辩论——然后，才是选择的机会。
Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.
农业的成功来自于对土地和市场的双重理解。
艺术作品是一个问题，而非答案。
化学中的每一个发现都是向自然真理迈进的一步。
译文：听别人说不如亲眼看看，远远观望不如凑近细查。
The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.
Stay true to yourself, yet always be open to learn.