Taking as his starting point the collapse of the medieval world, Gillespie argues that from the very beginning moderns sought not to eliminate religion but to support a new view of religion and its place in human life- and that they did so not out of hostility but in order to sustain certain religious beliefs. He goes on to explore the ideas of such figures as William of Ockham, Petrarch, Erasmus, Luther, Descartes, and Hobbes, showing that modernity is best understood as the result of a series of attempts to formulate a new and coherent metaphysics or theology.