After hundreds of millions of years, human beings have evolved from marine organisms to homo sapiens. The fish in rivers, lakes, and seas are close relatives of mankind. In Chinese culture, the fish is a symbol of good fortune and prosperity. Artists of the past dynasties have sought auspicious fortunes by painting fish. But today, 171 million tons of fish are caught by humans every year. What is perhaps even more frightening is that 8 million tons of plastic waste enter the ocean every year and cause 15 million marine life deaths. The harmony between man and nature is one of the essences of Chinese traditional culture. And this value has been abandoned by the billions of people living on this earth. I do not seek fortune and prosperity by painting fish, but wonder whether humans can still live in harmony with nature before it is too late.