Gustave Le Bon (May 7, 1841 – December 13, 1931) was a French sociologist, a social psychologist, anthropologist, inventor, and amateur physicist. He is best-known by his theory of crowd psychology and herd behavior. He discovered the phenomenon “the Crowd”. Adolf Hitler is known to have read The Crowd and in his Mein Kampf he drew largely on the propaganda techniques proposed by Le Bon. Benito Mussolini also made a careful study of Le Bon's crowd psychology work, frequently rereading the book. Also, his works was a handbook of V. Lenin.
“The Work of Ideas in Human Evolution” was written by M. Gustave Le Bon and published by “Popular Science Monthly” (Volume 47; January 1895). Let's read and get to know his proofs and arguments.