Once upon a time, there was a 90 year old man named Yu Gong. Taihang Mountain and the two mountain Wangwu mountain in front of his house, the two mountains over ten thousand feet high, seven hundred miles wide, the village blocking Yanyanshishi, everyone go to around the long way. One day, the old man took the whole family together, said: 'the proposed block two mountains (Block) our way, we work together to remove them, what do you think?' Everybody had been the two mountains of harm, quite agree with the old man's words. However, the old man's wife raised objections, she said: 'age like you, even as his father this hill, also not necessarily can easily move, let alone the Taihang, Wang Wu such a mountain? His father compared with them, just pale into insignificance by comparison. Moreover, those who and where to put the stones and dirt?' We said: 'we can put the stones and dirt piled up on the edge of Bohai.' The mind has already decided, therefore, to lead his son and grandson, a line of three people came to the Taihang, Wang Wu two hill, break stones, dig up dirt, and bamboo basket will put them away, shipped to Bohai. The old neighbor, a widow, her eight or nine year old child also ran out, and the foolish old man together they transported soil. On the edge of the Yellow River,求采纳