New in paperback. Hardcover was published in 2008. The first book to examine the development of mathematics from 1880 to 1920 as a modernist transformation similar to those in art, literature, and music. Plato's Ghost evokes Yeats's lament that any claim to worldly perfection inevitably is proven wrong by the philosopher's ghost; Gray demonstrates how modernist mathematicians believed they had advanced future than anyone before them, only to make more profound mistakes.