Capital. Critique of Political Economy (German: Das Kapital. Kritik der politischen Ökonomie) by Karl Marx is a foundational theoretical text in materialist philosophy, economics and politics. Marx aimed to reveal the economic patterns underpinning the capitalist mode of production, in contrast to classical political economists such as Adam Smith, Jean-Baptiste Say, David Ricardo and John Stuart Mill. Marx did not live to publish the planned second and third parts, but they were both completed from his notes and published after his death by his colleague Friedrich Engels.
Capital, Volume I (1867) is a critical analysis of political economy, meant to reveal the contradictions of the capitalist mode of production, how it was the precursor of the socialist mode of production and of the class struggle rooted in the capitalist social relations of production. The first of three volumes of Das Kapital, Kritik der politischen Ökonomie (Capital: Critique of Political Economy) was published on 14 September 1867, dedicated to Wilhelm Wolff and was the sole volume published in Marx's lifetime.