"All over the world, famous people began declaring themselves LeBon fans. Like Mussolini: "I have read all the work of Gustave LeBon and I don't know how many times I have reread The Crowd. It is a capital work to which, to this day, I frequently refer." And Goebbels: "Goebbels thinks that no one since the Frenchman LeBon has understood the mind of the masses as well as he," wrote Goebbels's aide Rudolf Semmler in his wartime diary."