Mr. Lévi-Strauss cited a series of North American myths that associate twins with opposing natural forces: threat and promise, danger and expectation. One myth, for example, includes a magical hare, a rabbit, whose nose is split in a fight, resulting, literally, in a harelip, suggesting an incipient twinness. With his injunctions, the Peruvian priest seemed aware of associations between cosmic disorder and the latent powers of twins.

Mr. Lévi-Strauss’s ideas shook his field. But his critics were plentiful. They attacked him for ignoring history and geography, using myths from one place and time to help illuminate myths from another, without demonstrating any direct connection or influence.

In an influential critical survey of his work in 1970, the Cambridge University anthropologist Edmund Leach wrote of Mr. Lévi-Strauss: “Even now, despite his immense prestige, the critics among his professional colleagues greatly outnumber the disciples.”

Mr. Leach himself doubted whether Mr. Lévi-Strauss, during his fieldwork in Brazil, could have conversed with “any of his native informants in their native language” or stayed long enough to confirm his first impressions. Some of Mr. Lévi-Strauss’s theoretical arguments, including his explanation of cannibals and their tastes, have been challenged by empirical research.

Mr. Lévi-Strauss conceded that his strength was in his interpretations of what he discovered, and he thought that his critics did not sufficiently credit the cumulative impact of those speculations. “Why not admit it?” he once said to an interviewer, Didier Eribon, in “Conversations With Lévi-Strauss” (1988). “I was fairly quick to discover that I was more a man for the study than for the field.”

Claude Lévi-Strauss was born on Nov. 28, 1908, in Brussels to Raymond Lévi-Strauss and the former Emma Levy, who were living in Belgium at the time. He grew up in France, near Versailles, where his grandfather was a rabbi and his father a portrait painter. His great-grandfather Isaac Strauss was a Strasbourg violinist mentioned by Berlioz in his memoirs. As a child, he loved to collect disparate objects and juxtapose them. “I had a passion for exotic curios,” he said in “Conversations.” “My small savings all went to the secondhand shops.” A collection of Jewish antiquities from his family’s collection, he said, was displayed in the Musée de Cluny in Paris; others were looted after France fell to the Nazis in 1940. From 1927 to 1932, Claude obtained degrees in law and philosophy at the University of Paris, then taught in a local high school, the Lycée Janson de Sailly, where his fellow teachers included Jean-Paul Sartre and Simone de Beauvoir. He later became a professor of sociology at the French-influenced University of São Paulo in Brazil.

A Taste for Adventure

Determined to become an anthropologist, he began making trips into the country’s interior, accompanied by his wife, Dina Dreyfus, whom he married in 1932. “I was envisaging a way of reconciling my professional education with my taste for adventure,” he said in “Conversations,” adding: “I felt I was reliving the adventures of the first 16th-century explorers.”