政府，即使在其最佳状态下，也不过是一种必要的恶；在其最坏状态下，则是无法忍受的。
Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.
创新需要勇气，更需要坚持。
The only way to do great work is to love what you do.
The beauty of mathematics lies in its ability to describe the universe in a language that transcends cultural and linguistic barriers.
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.