看不见的手之所以常常看不见，是因为它常常不存在。
The reason that the invisible hand often seems invisible is that it is often not there.
写作的行为是一种乐观的行为。如果你觉得这无关紧要，你就不会费心去做。
乳制品的未来在于技术，但其核心仍在于传统和工艺。
The power of computing lies in its ability to transform ideas into reality.
The most exciting moments in mathematics are when you discover something that was hidden in plain sight.