Marx viewed society and history through the lenses of dialectical materialism. He believed that societies progressed through contradictions and changes in the mode of production. For Marx, the key contradiction under capitalism was between the need for profits and the need for widespread consumption. This contradiction leads to overproduction crises that are only temporarily resolved through expanding markets and destroying capital, ensuring further crises. Marx argued that relations of production, such as the monopoly of capital over the means of production, are not natural but result from historical processes. How people produce to live shapes their social relations and consciousness.