I leave you the best phrases of Erich Fromm (Germany, 1900 - Switzerland, 1980), philosopher and psychoanalyst who fiercely criticized Western society through his large number of publications. Among his most popular books are The Art of Loving, Fear of Freedom and ¿Have or Ser?
Due to his Jewish origins, Fromm was forced to emigrate to the American continent. His texts deal extensively with love, hatred, nationalism, nature and culture, among many other topics.
He is considered one of the founders of the American psychoanalytic culturalist school, which focuses on solving the neurosis of the modern human being through the imposition of humanism over consumerism and economic values.
You may also be interested in these quotes from psychologists, these from Freud or these from Carl Jung.