Rosamond Kent Sprague is Emerita Professor of Philosophy and Greek, University of South Carolina.

"...This book, a welcome reprint of a 1972 work, will primarily be of interest to students of ancient philosophy. For them it contains much material not easily (or as cheaply) available elsewhere. However, it may also be recommended reading for at least two other constituencies. First, to those who read Plato, in order to provide the basis for a more balanced judgement of those whom he excoriates. Secondly, to contemporary philosophy practitioners to whom such as Roger Scruton have sought to apply, in a pejorative way, the label of 'sophist'..." -- Trevor Curnow, Practical Philosophy, July 2001.

Will be of interest both to those who know Greek and to those who do not, and, it is hoped, will provide a contribution to the serious study of the sophist movement. . . . Fascinating reading. -- The Classical Review