Born December 13, 1902 in Colorado Springs. He died at the age of 76 on May 6, 1979 in Munich, West Germany. His field was sociology and he studied at Harvard University. Talcott Parsons studied philosophy, sociology, and biology at Amherst College. In 1924 he received his BA. Parsons also studied at the London School of Economics and received his PhD from Heidelberg University. From 1927 to 1973 he served on the faculty of Harvard University. Parsons developed a theory for the study of society, which he called action theory. The theory of action was born to identify itself as an attempt to support the scientific rigor of positivism. This theory attempted to establish a balance between two major mythological traditions. Parsons was responsible for valorizing the work of Emile Durkheim, Vifredo Pareto and Max Weber. Parsons argued that it should be analyzed in different terms1. Distinction between structural and functional.2. Fundamentally clear difference between maintaining the balance of systems and structural change. Parsons' studies included that of roles. Roles in society and families. He also stated that the role of the sick person is a social role. He found that kinship structures are also clearly subject to a major process of functional differentiation and have often become the focus of political and economic activities. He outlined what has become the accepted functional view of education. He argues that primary socialization within the family is taken over by the school as the focal socialization agency. Charles DarwinBorn February 12, 1809 in the United Kingdom. He died at the age of 76 in April 1882 in Kent, United Kingdom.Darwin studied at Cambridge University....... middle of paper......s. It's a way to help many people deal with their problems and emotions. His method was used to understand how patients felt, what they were going through. Freud's methods changed the world and helped many people. It gave us a chance to look at the human brain and how to deal with people who were in an emotional state. Aside from Parsons' research which talks about sociology and how people should act in society, or Darwin's research which talks about how humans have changed over time. Freud's theory talked about how the human brain works, he formulated an understandable theory, he explained his theory adequately and showed us the different parts of the brain, the unconscious and the conscious, and how this is divided into three: l 'Ego, the id and the superego. This is why I think Freud's research provides the greatest understanding of all three concepts