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Dialectical materialism is the philosophical program of Marxism as defined by later Communists and their Parties (sometimes called "orthodox" Marxism). As the name signals, it is an outgrowth of both Hegel's dialectics and Ludwig Feuerbach's and Karl Marx's philosophical materialism, and is most directly traced to Marx's fellow thinker, Friedrich Engels. It uses the concepts of thesis, antithesis and synthesis to explain the growth and development of human history. Although Hegel and Marx themselves never used the "thesis, antithesis, synthesis" model to summarize dialectics or dialectical materialism, it is now commonly used to illustrate the essence of the method.
The degeneration of Marxist method within the USSR to a pseudo-scientific language, referred to as "diamat" (short for dialectical materialism) has led some Marxist theorists to re-assess the place of Engels' work Dialectics of Nature in the Marxist canon. They note that Marx preferred the term "historical materialism", which limits his method within a specifically human, sociological context, distinguishing it from what follows here.
While dialectical materialism has been traditionally associated almost exclusively with Marxism, the philosophy is applicable to a contemporary worldview as well. There is nothing in either the concept of dialectic as elaborated by Hegel or in materialism itself which requires Marxism. However, because Marxism is essentially free of traditional theological influences, it is particularly well-suited to dialectical materialism, and a comparable political system based on the philosophy has not yet emerged.
Dialectical materialism was foreshadowed in Taoism, an ostensibly materialistic philosophical system which, being free of supernatural elements, posits a naturalistic unity of complementary polarities known as Yin and Yang. This co-substantial union of opposites, known as the Taiji or 'Supreme Ultimate,' is a forerunner of modern dialectical thinking.
Materialism holds that the world is material, that all phenomena in the universe consist of matter in motion, wherein all things are interdependent and interconnected and develop in accordance with natural law, that the world exists outside us and independently of our perception of it, that thought is a reflection of the material world in the brain, and that the world is in principle knowable.
1) The universe is not an accidental mix of things isolated from each other, but an integral whole, wherein things are mutually interdependent.
2) Nature is in a state of constant motion:
Materialism
In essence, materialism answers the fundamental question of philosophy by asserting the primacy of the material world: in short, matter precedes thought. Dialectics
Dialectics is the science of the most general laws of development of nature, society, and thought. Its principal features are as follows:
3) Development is a process whereby insignificant and imperceptible quantitative changes lead to fundamental, qualitative changes. The latter occur not gradually, but rapidly and abruptly, in the form of a leap from one state to another.
4) All things contain within themselves internal contradictions, which are the primary cause of motion, change, development in the world.Laws of dialectics
The three laws of dialectics are:
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Selected readings on dialectical materialism
See also: Marx, Engels, Marxism, historical materialism

