Two types of social contradictions–those between ourselves and the enemy and those among the people themselves confront us. The two are totally different in their nature. At the present stage, the period of building socialism, the classes, strata and social groups which favour, support and work for the cause of socialist construction all come within the category of the people, while the social forces and groups which resist the socialist revolution and are hostile to or sabotage socialist construction are all enemies of the people.