Natalie

“The study of the various states of unevenness in contradictions, of the principal and non-principal contradictions and of the principal and the non-principal aspects of a contradiction constitutes an essential method by which a revolutionary political party correctly determines its strategic and tactical policies both in political and in military affairs. All Communists must give it attention.”
― Mao Zedong, On Contradiction

“According to materialist dialectics, changes in nature are due chiefly to the development of the internal contradictions in nature. Changes in society are due chiefly to the development of the internal contradictions in society, that is, the contradiction between the productive forces and the relations of production, the contradiction between classes and the contradiction between the old and the new; it is the development of these contradictions that pushes society forward and gives the impetus for the supersession of the old society by the new. Does materialist dialectics exclude external causes? Not at all. It holds that external causes are the condition of change and internal causes are the basis of change, and that external causes become operative through internal causes. In a suitable temperature an egg changes into a chicken, but no temperature can change a stone into a chicken, because each has a different basis.”
― Mao Zedong, On Contradiction

“During the passage from the first two parts of the book, [The Origins of Totalitarianism by Hannah Arendt], which still possess the vehemence of the struggle against Nazism, to the third, which is instead tied to the outbreak of the Cold War, the category of imperialism (a category subsuming first of all Great Britain and the Third Reich as a sort of highest stage of imperialism) is replaced by the category of totalitarianism (which subsumes Stalin’s USSR and the Third Reich). The species of the genus of imperialism do not coincide with the species of the genus of totalitarianism. Even the species that apparently remains unchanged, that is Germany, is described in the first case as originating with Wilhelm II at the earliest, and in the second case it appears as late as 1933. At least with regard to formal coherence, the initial plan appears to be more rigorous. After clarifying the genus of ‘imperialism’, in tracing the specific differences of this phenomenon, the initial plan moved on to analyse the species of ‘racial imperialism’. But how could the categories of totalitarianism and imperialism now blend together into a coherent whole? And what relationship connected them both to the category of antisemitism? Arendt’s answers to these questions seem to seek an artificial harmonisation between two levels that continue to be scarcely compatible.”
― Domenico Losurdo, Towards a Critique of the Category of Totalitarianism

“Metaphysicians hold that all the different kinds of things in the universe and all their characteristics have been the same ever since they first came into being. All subsequent changes have simply been increases or decreases in quantity. They contend that a thing can only keep on repeating itself as the same kind of thing and cannot change into anything different. In their opinion, capitalist exploitation, capitalist competition, the individualist ideology of capitalist society, and so on, can all be found in ancient slave society, or even in primitive society, and will exist for ever unchanged. They ascribe the causes of social development to factors external to society, such as geography and climate. They search in an over-simplified way outside a thing for the causes of its development, and they deny the theory of materialist dialectics which holds that development arises from the contradictions inside a thing. Consequently they can explain neither the qualitative diversity of things, nor the phenomenon of one quality changing into another. In Europe, this mode of thinking existed as mechanical materialism in the 17th and 18th centuries and as vulgar evolutionism at the end of the 19th and the beginning of the 20th centuries. In China, there was the metaphysical thinking exemplified in the saying "Heaven changeth not, likewise the Tao changeth not", and it was supported by the decadent feudal ruling classes for a long time. Mechanical materialism and vulgar evolutionism, which were imported from Europe in the last hundred years, are supported by the bourgeoisie.

As opposed to the metaphysical world outlook, the world outlook of materialist dialectics holds that in order to understand the development of a thing we should study it internally and in its relations with other things; in other words, the development of things should be seen as their internal and necessary self-movement, while each thing in its movement is interrelated with and interacts on the things around it. The fundamental cause of the development of a thing is not external but internal; it lies in the contradictoriness within the thing. There is internal contradiction in every single thing, hence its motion and development. Contradictoriness within a thing is the fundamental cause of its development, while its interrelations and interactions with other things are secondary causes. Thus materialist dialectics effectively combats the theory of external causes, or of an external motive force, advanced by metaphysical mechanical materialism and vulgar evolutionism. It is evident that purely external causes can only give rise to mechanical motion, that is, to changes in scale or quantity, but cannot explain why things differ qualitatively in thousands of ways and why one thing changes into another. As a matter of fact, even mechanical motion under external force occurs through the internal contradictoriness of things. Simple growth in plants and animals, their quantitative development, is likewise chiefly the result of their internal contradictions. Similarly, social development is due chiefly not to external but to internal causes.”
― Mao Zedong, On Contradiction