Plato vs. Marx: Philosophical Arguments Everyone has different views and ideas in today's society. It was no different back in the times of Plato and Karl Marx. These two famous philosophers developed their own ideas and beliefs about different subjects. Plato and Marx's views differed in the subject of Epistemology, the study of knowledge, and also in the subject of Metaphysics, the study of what is, or 'being.' In addition, the topic of the ideal state caused contrary opinions. Plato believes that the ideal state is comprised of three classes, of people while Marx believes that the state should be a classless society. There is a