- Research is a matter of overcoming obstacles. That's what research is about. There are problems. There are difficulties. It's hard to make sense of a collection of information or whatever. Obstacles are the nature of research. Maybe that's why some people give up. There's always an obstacle. You overcome one to find there's another one.
- Interviewed by Harry Kreisler, February 28, 2003. In Conversations with History. Institute of International Studies, UC Berkeley.
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