Richard Maurice Bucke (18 March 1837 – 19 February 1902) was a Canadianpsychiatrist in the late 19th century. An adventurer during his youth, Bucke later studied medicine. Eventually, as a psychiatrist, he headed the provincial Asylum for the Insane in London, Ontario. Bucke was a friend of several noted men of letters in Canada, the United States, and England.}} Besides publishing professional articles, Bucke wrote three non-fiction books: ''Man's Moral Nature'', ''Walt Whitman'', and ''Cosmic Consciousness: A Study in the Evolution of the Human Mind'', which is his best-known work.
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