In The Manifesto of the Communist Party the founders of Marxism demarcated in a principled way the qualitatively different forms of Utopian socialism. They critically analyzed "feudal socialism," petty-bourgeois socialist Utopias, bourgeois pseudo-socialism and, finally, the critical-Utopian socialism of St. Simon, Fourier, and Owen, which was one of the theoretical sources of the scientific ideology of the working class. This analysis shows that as early as the first half of the nineteeth century ideologies that were foreign to the working class (...) frequently appeared under the banner of socialism. In some cases this socialism had an imaginary, purely phraseological character. In others, it represented a petty bourgeois interpretation of the proletarian liberation movement. But critical-utopian socialism was the reflection of "the first instinctive yearnings of the proletariat for a universal reconstruction of society." This class characterization of the various modifications of socialist doctrine during the epoch of the West European bourgeois democratic revolutions has great methodological significance for understanding the whole subsequent evolution of the ideology of capitalism. (shrink)