1The paper published in the Yearbook of Germany and France in February, 844 shows that Marx and Engels completed the transformation from idealism to materialism.

The German-French Yearbook is a German publication published in Paris. Engels called it the first socialist publication in Germany, and the editors were Marx and A. Lugar. Only one issue of this magazine was published in February, 1844, which published two articles by Marx and Engels and three letters by Marx.

Marx formulated a clear policy for the magazine, the main points of which are: not advocating any dogmatic banner, but discovering the new world by criticizing the old world; Ruthless criticism of everything that exists; Find a new meeting place for people who really think independently; Theoretical criticism of newspapers and periodicals should be combined with political criticism.

Lenin pointed out that these articles show that Marx and Engels have completed the transformation from idealism to materialism and from revolutionary democracy to * * * productism. Due to the differences in principle between Marx and Lugar, a radical bourgeois, and financial constraints, the magazine failed to continue publishing.

It established the new core of Marx's critical philosophy, that is, civil society criticized and abolished private property, and the fundamental way to realize its social ideal, that is, proletarian revolution. The isomorphism of the two became a whole, which publicly announced to the world the formal birth of Marx's new political philosophy, namely the socialist revolution or proletarian revolution theory.

The articles in the German-French Yearbook deeply analyzed and criticized the social system and political issues at that time, involving the constitution, political economy, state institutions and moral customs. This criticism not only has profound theoretical significance, but also has important practical guiding significance, which provided a powerful ideological weapon for social change at that time.

The establishment and distribution of the German-French Yearbook is also of great historical significance. It is an important platform for the development of Marx and Engels' early thoughts. Through this platform, their thoughts and theories were spread in a wider range, which had a far-reaching impact on the society and ideological circles at that time.

The influence of Marx's capital theory;

1, Economics: put forward the theory of surplus value and the operating law of capitalist economy, which had a very far-reaching impact on the development and research of modern economics. It not only plays an important guiding role in understanding the modern capitalist economic system, but also provides an important reference for decision makers.

2. Socialist ideology: emphasizing the importance of rights, freedom and equality. These thoughts have had a far-reaching impact on modern socialism and proletarian revolution, and inspired people's pursuit of social justice and equality.

3. Political field: Reveals the essence and operating mechanism of the capitalist system, and provides a theoretical basis for proletarian revolution and socialist construction. It has had a far-reaching impact on western economics and promoted the rise of socialist economics and the revolution of value theory.