Friedrich Nietzsche
Friedrich Nietzsche, a German philosopher, began his career as Chair of Classical Philology at a German university when he was only 24 years old. He discussed his “death of God” theology in particular, which was first mentioned in his written works in 1882. He also talked about other radical perspectivist ideas. Nietzsche had serious health issues that necessitated constant care from his mother and, later, his sister. His sister was discovered to have been editing his unpublished papers, changing their meaning to meet her own and contradicting his.
Sigmund Freud
Sigmund Freud, the father of psychoanalysis, made substantial contributions to psychology, psychiatry, and psychotherapy during his lifetime (1856–1939). He developed therapeutic techniques such as free association and recognized transference, which are still in use in Western culture today. He also looked into how thoughts affect the unconscious mind and how dreams are interpreted.
