Despite the great differences between them, both Marx and Wittgenstein reject Cartesian dualism by showing that the mind is a property of action and that hte meaning of an action lies not in subjective consciousness but in the system of social praxis in which an action occurs. This common view provides groundwork for undercutting the enduring debate between 'subjectivism' and 'objectivism' in the social sciences, and is the key to their notionof social...