After Leibniz's death in 1716, Clarke published an edition of their philosophical correspondence--a wide-ranging discussion of the nature of God, human souls, free will and indifference of choice, space and time, the vacuum, miracles, and matter and force. Clarke included his own letters, his translations of Leibniz's letters, and some translated passages from Leibniz's French and Latin works that helped to illuminate their exchanges.
For this new edition, Roger Ariew has adapted Clarke's effort, modernizing it to reflect contemporary English usage. Ariew's Introduction places the correspondence in its historical context and discusses the vibrant philosophical climate of the times. Appendices provide those selections from the works of Newton that Clarke frequently refers to in the correspondence