The Social darwinism is a theory of natural selection between social, political and economic issues. It follows the Mantra of "the strong shall survive", including human issues. The idea of the theory saying that the white European is a race with more superior abilities than the others.
Social Darwinism is the term given to various theories of society which rise in the North America, Western Europe and United Kingdom during 1870s. The theories are applied to natural selection and survival of the fittest.
Psychoanalysis is a psychoscientific approach that aims to reach deep layers of the unconscious. This approach was created by Freud and seeks to discover the deepest thoughts and desires of the human being that are repressed to the magic by the conscience as a form of self-preservation and even modesty.