Social workers are people who are committed to the pursuit of social welfare and social change in Pittsburgh. Social workers usually work towards research and practice to improve the quality of life and development of the potential of each individual, group and community of a society. Social workers perform interventions through research, policy, community organizing, direct practice and teaching. Professional social workers are generally considered those who hold a degree in social work. Social work has its roots in the struggle of society to deal with poverty and its resultant problems. Therefore, in places like Pittsburgh social work is intricately linked with the idea of charity work. The concept of charity goes back to ancient times, and the practice of providing for the poor has roots in many major ancient civilizations and world religions.