三千多年前,伟大的思想家孟子,在与同时代思想家告子辩论人性善恶的时候,讲述了这样一个故事:齐国的牛山,曾经是一个树木繁茂的地方,有日月雨露的滋润,山上的草木生长十分旺盛。但是,由于牛山地处国都临淄附近,临淄的老百姓常常进山伐木,放牧牛羊,最终竟然使得山中树木被砍伐干 Three thousand years ago, the great thinker Mencius, in debating the good and evil of human nature with the contemporaries of thinkers, told such a story: Niushan of Qi State was once a wooded place with the moisture of the sun and the moon , The vegetation on the hill is very strong. However, since Niushan is located near Linzi in Guodu, Linzi people often go into the mountains to cut trees and graze sheep and sheep, eventually making the trees in the mountains cut down