"An excellent book, truly readable and accurate. I repeatedly found myself intrigued and informed by Martinez's examples and approaches, which succeed in transforming competent historical analysis into an informative and thought-provoking meditation on mathematical meaning."--Joan L. Richards, Brown University
"Beautifully written. Accurate and reliable. The author's point, that mathematics is constructed according to our judgment of what will serve us, is very important and little understood."--Reuben Hersh, University of New Mexico
"Martinez writes with an accessible and conversational style. His discussion of the relationship of mathematics to physics and its role in the concrete features of the world makes this book attractive to general readers and academics alike."--Ronald Anderson, Boston College