In this book, Esteve Morera connects Marxist philosophy to the broader philosophical discussion of materialism in metaphysics, the philosophy science, philosophy of mind, and naturalised ethics. Each chapter deals with a particular aspect related to materialism and its consequences, the sorts of things that, if materialism is true, need to be confronted. Morera critiques, and rejects Gramsci's conception of matter and materialism and concludes that that philosophical materialism is compatible with freedom, and as a consequence, offers a good foundation for ethical life.