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according to his origin, psychology derived from the Greek words: psyche meaning soul and logos meaning science. so it literally means the science of soul to psychology. however, meaning "science of life" is still vague at all. what is meant by "soul", no one knows for certain. meaning that the impact of vagueness, often leading to a variety of opinions on the different definitions of psychology. many scholars to give their own definition to suit the interest and the flow direction, respectively. (sarlito w.sarwono.2010:1) by: 1. Rene Descartes (1596-1650) = the science of consciousness (sarlito w.sarwono.2010:4) 2. gardner murphy (1929) = the study of the response that is given by living things to their environment (sarlito w.sarwono.2010:6) 3. clifford t. morgan (1966) = the study of human and animal behavior (sarlito w.sarwono.2010:6) in my opinion: psychology is the study of the behavior and symptoms - symptoms of the human psyche. by: selly candra ayu(12410020)