The national economy and social stability an excessive emphasis on agriculture, all surtaxes pressure on the broad masses of people, people life extremely difficult, people is very difficult to have surplus grain. 我国农业社会封建专制统治几千年,国家经济和社会稳定过分倚重于农业,各种苛捐杂税都压在广大的百姓头上,民众生活极其艰难,民众手中很难存有余粮。