'... a substantial achievement... a compelling case for Thales to be regarded as a worthy founding father of Western philosophy.' Analytic Teaching 'The strength of O'Grady's book is its comprehensiveness; nothing relevant to Thales and his legend is left out, and much that is arcane is included... It is the only book-length treatment of Thales, and will likely remain so. It contains flashes of new information and interpretations of familiar material. The bibliography is weighted toward English, but is catholic in subject matter, and itself is an impressive contribution. For such solid reasons scholars should welcome this book.' Journal of the History of Philosophy 'Chapter Eight, New Ideas about the Cosmos, is outstanding. Here the author paints an inspiring portrait of Thales as the first astronomical scientist... Thales' achievements, which come alive through O'Grady's comprehensive and sympathetic presentation, are ample justification for calling him the first ancient Greek scientist and philosopher'. Prudentia '... interesting to anyone studying the emergence of scientific thought.' Isis