Humanism
His progressive ideas led him to found, in 1929, the First Humanist Society of New York, whose advisory board included Julian Huxley, John Dewey, Albert Einstein and Thomas Mann. Together with Dewey, Potter was also one of the original 34 signees of the first Humanist Manifesto in 1933. Potter was also the founder, in 1938, of the Euthanasia Society of America.
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