To revisit 'The Silence of Animals' (2013), is to renew respect for Gray's approach to the big dilemmas. But what does he say about 'mind', you may ask? " The myth that human beings can use their minds to lift themselves out of the natural world...has been renewed (from Socratic and Platonic mystical philosophy) in a garbled version of the language of evolution." Gray cites myth and illusion as metaphors for the human condition - the second section of the book quotes Freud acknowledging that his theories were grounded in "our mythological theory of instincts", and that the death instinct (the internal force that seeks to undermine individual achievement and health, and that finally defeats every life) may be a myth. He also offers a version of dualism, echoing Freud's inner conflict and Eros/Thanatos models to decry the possibility of any real improvement in how humanity interacts with the natural world. Why impossible ? Because human...