Mill is considered an important representative of liberal political thought. However, it is often overlooked that he also contains significant motives of republican, and even socialist, thought that elude this straightforward categorization. In his work 'On Socialism,' Mill emerges as a radical critic of a fundamental institution of bourgeois society: private property. In this book, which remained unfinished and was published five years after his death, Mill engages with the various forms of contemporary criticism of capitalism and places social inequality at the forefront of his critique. Mill extensively describes the socialist and communist movements of his time and discusses their reform and revolutionary plans. In his own conception of socialism, Mill combines ideas of comradeship.