Discipline: Social Science, Sociology
Outstanding among the social problems facing urban centers of the world in general and Nigeria is the problem of crime. The increasing rate of criminal activities has become a major concern across the globe. Today, lives and properties are no longer safe for both the rich and the poor. All seem to live one day at a time. Content Analysis is used as the method of data analysis. The method adopted was more of an exposition, critical analysis and evaluation. More specifically, this paper gave a general background about violence, urban violence and the question of self-defense. Furthermore, a philosophical answer was given in the light of the medieval thinker St. Thomas Aquinas. It was concluded that there is a need for social living. A good citizen is one who has an unselfish love for the common good of his state; a love issuing forth in an efficacious desire to see that good is procured and furthered. Thus, a good citizen realizes that he is part of a social and political society. Thus, his personal goodness, and the goodness of his actions contributes to the good of all.