The farmer is the only man in our economy who has to buy everything at retail, sell everything at wholesale, and pay the freight both ways.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
Fortune favors the prepared mind.
应对不自由世界的唯一方法是变得如此绝对自由,以至于你的存在本身就是一种反叛。
Climate change isn't a future threat - it's reshaping our fields today.