Discuss the sayings:

1. He who learns but does not think is lost; he who thinks but does not learn is in danger. 2. When I walk along with two others, I may be able to learn from them. 3. What you know, you know; what you don’t know, you don’t know.　 4. Learn the new while reviewing the old.　 5. Isn’t it a pleasure that friends come to see you from far away? 6. Do not do to others what you would not have them do to you. 7. My career is in China, my success is in China and my destination is in China. 8. My family name is Qian, but I don’t like qian.