A companion to Plato - Benson, Hugh H.; Ahbel-Rappe, Sara; Brickhouse, Thomas C.; Dancy, R. M.; Devereux, Daniel; Ferejohn, Michael; Freeland, Cynthia; Gill, Mary Louise; Janaway, Christopher; Kahn, Charles; Keyt, David; Long, A. A.; et al. (Blackwell companions to philosophy, 2009)