Le Bon believed that crowds need strong leaders, to distance them from their natural madness and transform them into civilizations of splendor, vigor, and brilliance. Mussolini and Hitler both took inspiration from his book, and incorporated his ideas into Fascist and Nazi ideology; and those ideas did not die with those regimes.
勒庞认为群体需要强大的领袖以使他们脱离天然的疯狂状态，将他们变为壮丽、活力、华美的文明。墨索里尼和希特勒都从这本书中获得了灵感，并把勒庞的思想融合到法西斯主义和纳粹主义钟来；这些思想并未随着政权的倒闭而死去。