Acknowledgements Abbreviations: Cicero's Works A Note on Latin Text and Translations Introduction 1 De Natura Deorum, De Divinatione, and Cicero in the Enlightenment 2 The Natural Religion Debates 3 Reason and Scepticism 4 Argument and Approach 1 Cicero's Theological Project: Introducing De Natura Deorum and De Divinatione 1 Composing the Dialogues 2 The Theological Project 3 Decoding De Natura Deorum and De Divinatione 2 The Transmission of De Natura Deorum and De Divinatione up to 1660 1 The Early History of the Dialogues 2 The Transition to Print 3 Interpreting the Texts in the Sixteenth and Seventeenth Centuries3 Rational Witness: Cicero, Balbus, and the Being and Attributes of God, 1660-1683 1 Lescaloperius and the Rational Man's One God 2 Reason among the Pagans: Cicero as Witness to the Being of God 3 Balbus: Nature and Providence 4 Reading Balbus: Conflict and Confirmation4 Recruiting Cotta: Cicero and the Rise of Rational Religion, 1680-1718 1 Cicero and the Case for Imposture 2 The Freethought Debate in 1713 3 Editorial Intervention: John Davies' Edition of De Natura Deorum in 17185 Cicero the Sceptic? Marcus, Prophecy, and the Anti-Rational Cotta, 1721-1741 1 Editing Cotta and Marcus in 1721 2 Marcus and Prophecy 3 Tindal, His Critics, and the Sufficiency of Reason 4 1741: Contesting Academic Scepticism6 Conclusion Bibliography Index.