During ancient times, there was an old man with two sons, the elder was called Qing Shan and the younger one was called Hong Shan. The old man gave his property of East Mountain to Qing Shan and West Mountain was assigned to Hong Shan. West Mountain's trees were numerous, very good for burning charcoal. Hong Shan was very diligent, working hard all day to burn charcoal. He lived a very rich life, but three to five years later, the trees that he cut down dwindled in numbers, so Hong Shan planted crops instead. Unexpectedly, a heavy rain washed away all the crops planted by Hong Shan. He could not eat and had to go to his brother at East Mountain.
East Mountain originally had few trees, but Qing Shan had a plan. He first cut down the trees with poor quality and then planted new seedlings. He did land reclamation, feeding cattle and horses. A few years ago, life was very hard, but three to five years later, the seedlings grew up to become large trees, the crops flourished, and his cattle and sheep multiplied. After the heavy rain, the East Mountain had the trees for protection, so the crops did not suffer.
Hong Shan saw that his brother's land was beautiful, and asked his brother for the reason, his brother earnestly told him: "You take from the mountain instead of nurturing the mountain, after a while, the mountain will be exhausted. You must first cultivate the mountain to create abundance!" Later, people praised Qing Shan, saying: "留得青山在，不怕没柴烧(As long as the green mountains are there, there is no need to worry about firewood.)"