Marx Brothers appeared, sometimes with Chico and Zeppo caricatured, in cartoons starring Mickey Mouse, Flip the Frog and others. In the "Airwolf" episode 'Condemned', four anti-virus formulae for a deadly plague were named after the four Marx Brothers. In "All in the Family", Rob Reiner often did imitations of Groucho, and Sally Struthers dressed as Harpo in one episode in which she (as Gloria Stivic) and Rob (as Mike Stivic) were going to a Marx Brothers film festival, with Reiner dressing as Groucho. Gabe Kaplan did many Groucho imitations on his sit-com "Welcome Back, Kotter" and Robert Hegyes sometimes imitated both Chico
Influences on Karl Marx financiers to workers. It was Proudhon's book "What Is Property?" that convinced the young Marx that private property should be abolished. In one of his first works, "The Holy Family", Marx said: "Not only does Proudhon write in the interest of the proletarians, he is himself a proletarian, an ouvrier. His work is a scientific manifesto of the French proletariat". However, Marx disagreed with Proudhon's anarchism and later published vicious criticisms of Proudhon. Marx wrote "The Poverty of Philosophy" as a refutation of Proudhon's "The Philosophy of Poverty" (1847). In his socialism, Proudhon was followed by Mikhail Bakunin. After Bakunin's