Liezi is the title of a classic Chinese book; Liezi is short for Lie Yukou as ancient Chinese classic scholar or writer. Liezi spent his whole life in writing and collecting folk lore during the late period of the Warring-Kingdoms Dynasty（475BC-221BC）. His great achievements or contributions to China were about literature and art. There have been classically various kinds of fiction or prose since ancient China including fable, parable, legend, myth, fairy tale, etc. Lie Yukou wrote a lot of fable or legend works, most of which had been lost and not handed down in printing way. It was told that once the Former Han-dynasty History had covered his eight articles compiled in Literature and Art part of category. The titles we know as the Heavenly Luck, the Yellow Emperor, King Mu of the Zhou-dynasty (approximately 1100BC-256BC), Confucius, Interview with Emperor Tang of the Shang-dynasty (approximately 1700BC-1100BC), Hard-Fate, Scholar Yangzhu and Mozi, and On Incantation. There were 134 pieces of independent short stories scattered under the eight-subheads. One of the most famous fables is The Old Fool Moving Mountains, and the other is Two Boys Puzzled Confucius.

Right now I’d like to paraphrase the story written by Lie Yukou:
Traveling eastward from his Lu-Kingdom, Confucius met two boys arguing each other. He asked what both of them discussed about. One boy said: “I think the sun in the morning looks bigger, and at noon smaller, so the morning sun is nearer to the earth, and farther away from us at noon.” However, the other boy refuted and disagreed with his partner: “As everybody knows, the morning sun is cooler, but the sun at noon is hotter or warmer and burns like hot soup, so it must be nearer to the ground at noon than that in the morning.” Confucius hesitated to make sure either boy A or B was right or wrong. Both of the boys laughed at him and derided to say: “We all were told that you were rich in knowledge, is that true?”

From the story we learnt that even from the ancient times, the some famous Chinese scholars such as Confucius or Mencius paid less attention to researching science of nature but social science. We are proud of four great inventions (gunpowder, compass, paper and art of printing) contributing to mankind but we are still in regret of less modern natural scientific achievements to the world.

However, the hard-working Chinese people have been still encouraged by the magic power from the ancient fable, The Old Fool Would Move Mountains. Following his never-changed will, we could do much more in natural science, too.