Sociology is the systematic study of the groups and societies humans build and of the way these alliances affect our behavior. Sociologists do not limit themselves to the study of individuals, current events, and private lives. Rather they examine the way social institutions such as the family, the educational system, or the economy, influence individuals and the way social institutions, and even the whole societies are created, maintained, and changed. Thus, the objects of sociological studies varies widely ranging from the family, culture, religion, and crime to social class/stratification, industry, labor, community, organizations, urbanization, ecology, and social welfare. Sociologists base their knowledge on studies of the empirical world. Sociology uses scientific method to study the empirical world and develops a body of verified knowledge based upon scientific investigation. Thus the purpose of sociological education is to teach students the ability to view the direct or indirect personal experiences in relation to social structure in which they occur and to familiarize students with sociological methodology of studying the society scientifically.