In this bold new study, Andrew J. Mason seeks both to shed light on the key issue of flux in Plato s work, and to show that there is also in Plato a notion of "flow" that needs to be distinguished from flux. Mason brings out the importance of this hitherto neglected distinction, and proposes on its basis a new way of understanding the development of Plato s thought. The opposition between the being of Forms and the becoming or flux (...) of sensibles has been fundamental to the understanding of Plato from Aristotle to the present day. One key concern of this volume is to clarify which kinds or levels of flux Plato accepts in sensibles. In addition, Mason argues that this traditional approach is unsatisfactory, as it leaves out the important notion of flow. Unlike flux, flow is a kind of motion that does not entail intrinsic change. It is also not restricted to the sensible, but covers motions of soul as well, including the circular motion of "nous" that is crucial in Plato s later thought, particularly his cosmology. In short, flow is not incompatible with being, and in this study Plato s development is presented, largely, as his arrival at this view, in correction of his earlier conflation of flux and flow in establishing the dichotomy between being and becoming. Mason s study offers fresh insights into many dialogues and difficult passages in Plato s oeuvre, and situates Plato s conception and usage of flow and flux in relation to earlier usage in the Greek poetic tradition and the Presocratic thinkers, particularly Heraclitus. The first study of its kind, "Flow and Flux" uncovers dimensions of Plato s thinking that may reshape the way his philosophy is understood.". (shrink)

Hackforth and Menn make a strong case for the identity of nous and the demiurge in Plato, but I argue that it does not hold in the case of the Philebus, where the demiurge is kept in the background, and the world-soul is in fact the referent in the passage assigning nous to the class of cause as governor of the universe. In the Statesman, the world-soul had had to own the problem of natural catastrophe, and I suggest that in (...) the Philebus the role and functions of the world-soul are enhanced in an attempt to make it the basis for a solution to that problem. (shrink)

Heraclitus is generally recognised as the first of the Greek thinkers to develop a psychology, but the understanding of his psychology is held back by the assumptions that his soul is a life-principle and is ‘comprehensive’ of the various faculties we regard as psychological. The fragment that best displays the revolutionary character of Heraclitus’ soul doctrine, from a properly psychological viewpoint, is B 85. I offer an extended analysis of this fragment in order to bear out the claims, firstly, that (...) psyche or ‘soul’ for Heraclitus is the intelligence alone, divine in origin, and secondly that thumos (primarily as the seat of desire) is a better candidate for his biological life-principle, whose exigencies are at odds with those of soul. I also offer some reflections on why, despite Heraclitus’ multifaceted influence on fifth-century thought, and despite the coherence of his psychology, this ‘revolution’ never quite took hold. (shrink)