Karl Marx is a groundbreaking German philosopher and revolutionary known for pioneering the Marxist school of thought. His most famous works include The Communist Manifesto and Das Kapital, which have influenced generations of intellectuals, labor unions, activists, artists, and political parties all over the world. Through his critical theories on society and economics he predicted that capitalism would eventually lead to its own destruction by class conflict between the ruling classes and working classes. This self-destruction would then be replaced by a system where workers were emancipated from oppressive forces within their economic structure. Karl Marx's contribution to modern social science has been immense: He believed that organized action by working people could topple existing systems in order to create genuine freedom for all citizens. His writings continue to inspire new generations today as they strive for global socio-economic liberation from oppressive structures.