Beginning with Descartes' Meditations, the contributors examine some of the period's most seminal philosophical texts: Spinoza's Ethics, which presents a complete picture of reality that has at its heart how we can be good, the Monadology, in which Leibniz describes what must underpin reality if it is to be fully explained, Hobbes' Leviathan, which reminds us of the dangers of the unchecked brutality of humanity; Rousseau's Social Contract, a vision of how human nature can be changed for the better in a new society, Locke's Essay Concerning Human Understanding which wishes us to grasp that we must make knowledge our own through experience not authority, Berkeley's attack on materialism in his Treatise and Hume's search for rational justification for our most basic beliefs about the world in his Treatise of Human Nature. Together these essays offer students a remarkable survey of the key texts and core ideas that make up the age of rationalism and empiricism.