Scientist
Alfred Kinsey was an American scientist whose research on human sexuality laid the foundation for the modern field of sexology. His work had a profound influence on social and cultural values in the U.S. and many other countries. [1]
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"Kinsey, an ardent atheist, considered most of what he read about sex prudish because it was based on traditional "Judaeo-Christian" ethics he considered repressive." [2]
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"As a child, Kinsey was forbidden to learn anything about the subject that was to later bring him such fame. Kinsey ultimately disavowed the Methodist religion of his parents and became an atheist." [3]