"Revolution in Permanence" is a concept primarily associated with Marxist theory, particularly articulated by Karl Marx and Friedrich Engels in their 1850 "Address of the Central Committee to the Communist League." It refers to the idea that the proletariat, after seizing power in a bourgeois revolution, should not halt the revolutionary process but must continue it without interruption until the complete abolition of private property and the establishment of a classless communist society.

In the context of 19th-century Europe, Marx and Engels observed that the bourgeoisie, once having achieved its own democratic and capitalist goals, would inevitably betray the working class. Therefore, they urged the proletariat to maintain an independent political stance, push beyond the bourgeois-democratic phase, and continuously escalate the class struggle. This meant not just achieving political reforms but transforming the social and economic structure through a continuous revolutionary movement.

The concept was later significantly developed by Leon Trotsky in his theory of "Permanent Revolution." Trotsky argued that in economically underdeveloped countries, the bourgeois revolution (aimed at overthrowing feudalism and establishing capitalism) would be too weak to succeed on its own. Instead, the proletariat would have to lead this revolution, and in doing so, would immediately transition to socialist tasks, bypassing the full capitalist stage. This socialist revolution, he contended, could not be confined to national borders but would need to spread internationally to survive and succeed.

Thus, "Revolution in Permanence" signifies an uninterrupted, ongoing revolutionary process, driven by the proletariat, aimed at achieving fundamental social and economic transformation, often with an internationalist dimension. It underscores the Marxist belief in continuous class struggle as the engine of historical change.