1. Learning is like sailing against the current. If you don’t advance, you will retreat. 2. Only those who are brave and calm can survive the darkness and usher in the light. 3. Books are the ladder of human progress. 4. A person is not born to be defeated. You can destroy it, but you can't defeat it. 5. What makes pebbles perfect is not the blow of a hammer, but the singing and dancing of water.