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rich or famous? Is that success? Wang Mei: I don’t know. Let’s write down that question. Can you think of any more? Li Ming: Sure! Why are people different from animals? If we didn’t have language, could we think? Do animals think? What makes us happy? Do we need to be happy? Why are some people in the world very poor? Can we understand everything about the world? Why are there people? Are there people on other worlds? Will the