In your life there are a few places, or maybe only the one place, where something happened, and then there are all the other places.
Market failures are often not failures of markets, but failures of market design.
真正的冒险不是在地理上的探索,而是在心灵深处的旅程。
"The word is the shadow of the deed."
The Internet is a powerful tool for education, but it is not a substitute for the teacher.