1. When I walk along with two others, I may ne able to learn from them. When I walk along with two others, I may ne be able to learn from them.

2.Isn't a pleasure when your friends come to see you far away? Isn't it a pleasure when your friends come to see you far away?

3.Learn the new while reviewing the old. Review the old and learn the new.

4. What you know, you know .What you don't know you don't know. Knowing is knowing, not knowing is not knowing.

5. Do not to do others when you would not like .Do not do to others what you do not want others to do to you.