Origin:/kloc-At the beginning of the 9th century, famous representatives of utopian socialism appeared, including French Saint-Simon, Fourier and British Owen. They profoundly exposed the evils of capitalism and put forward many wonderful genius ideas for the ideal society in the future. They tried to establish a new society of "everyone is equal and everyone is happy". These thoughts have played an important role in inspiring and improving the consciousness of workers. But utopian socialism is only an immature theory, which reflects the initial and unclear wishes of the growing proletariat. They can't reveal the fundamental contradiction and development law of capitalism, they don't know the class struggle and historical mission of the proletariat, so their socialism can only be an unattainable fantasy. When the proletariat grows into an independent political force, it needs a revolutionary theory based on science to replace it.

Fundamental defect: Saint-Simon, Fourier and Owen, three utopian socialists in the19th century, profoundly exposed and sharply criticized the capitalist system from the political, economic, ideological and moral aspects. They pointed out that private ownership is the "general root" of inequality between the rich and the poor and other evils in society, and anarchy of capitalist production is the most serious disaster among all disasters, and concluded that the capitalist economic crisis is inevitable. In short, shortly after the establishment of the capitalist system, they exposed almost all the drawbacks of the system at that time and attacked all the foundations of capitalist society. These are indeed similar to the scientific socialism's understanding and criticism of capitalism.

However, due to the fact that the world outlook of the three utopian socialists is still idealistic in general and limited by history, their socialist thoughts still have serious shortcomings and defects. Almost all textbooks and related monographs express the defects of the three utopian socialists in this way:

1, "They don't understand the laws of social development, so they don't understand the objective laws of the inevitable demise of capitalism and the inevitable victory of socialism;

They don't understand that class struggle is the direct driving force for the development of class society, so they can't find the right way to transform capitalism.

They don't understand the historical position and mission of the proletariat, so they can't find the proletariat, a social force that can bury capitalism and realize socialism (they even fantasize about begging the gift of the ruling class to realize a better society). "