The meaning of this sentence was: A thrifty man has excess wealth and good luck, and a modest man has a good reputation. When the boat reaches the bridgehead, it will naturally cross. It means that things will develop according to one's own plan, just like how the boat will automatically bend when it reaches the other side. Green water flowing forever and mountains green meant that the scenery of nature would always exist, just like the continuous flow of water and the ever-green mountains. The meaning of this sentence is that we should be thrifty in life and not waste money and resources. At the same time, we should maintain a modest and humble attitude so that we can win the respect and trust of others. In the future, we should continue to work hard and stick to our beliefs, believing that everything will develop according to plan.