Strauss shot to prominence with his 1955 book “Tristes Tropiques” (A World on the Wane), a haunting account of travels and studies in the Amazon basin and one of the 20th century's major works. Levi-Strauss was a leading proponent of structuralism, which sought to uncover the hidden, unconscious or primitive patterns of thought believed to determine the outer reality of human culture and relationships. __