Welshon argues for a new interpretation of Nietzsche's metapsychology and philosophy of mind. Rather than rehearsing Nietzsche's criticisms of souls and religious and philosophical uses of souls and subjects yet again, Welshon starts from the idea that Nietzsche is interested in unpacking the view that the subject is a naturalized phenomenon, both embodied and embedded in a larger natural and social environment and dynamically engaged with that larger...