The Sophist sets out to explain what the sophist does by defining his art. But the sophist has no art. Plato lays out a challenging puzzle in metaphysics, the nature of philosophy, and the limitation of philosophy that is unraveled in this new and unconventional interpretation. The Sophist is presented now not as an artefact of the intellectual past or precursor of late 20th century philosophical theories, but as living philosophy. In a new translation and interpretation, this late dialogue is shown to be a defense of not a departure from Plato's metaphysics. The book is intended to provide a complete interpretation of Plato's Sophist as a whole. Central to the methodology adopted is the assumption that all elements of the dialogue to be understood must be understood in the context of the dialogue as a whole and in its relation to other works in the Platonic corpus.