This is an old saying, which is based on Feng Ming's magnum series "Warn the world that Yu Tangchun is in trouble and satisfy her husband". The son thought, "What can I do with him?" When I walked out of the gate, I saw a couplet hanging on the front door: "Ten years in front of the window, I became famous in one fell swoop ... I also saw a couplet on the second door:" People don't suffer, it's hard to get here. "Later, there was a saying among the people:" You have to eat hard to be a master. "