This volume combines two of Kant's key works on the metaphysics of nature--the "Prolegomena to Any Future Metaphysics That Will Be Able to Come Forward as Science and Metaphysical Foundations of Natural Science"--in the preeminent translations of James W. Ellington. Each work is preceded by an expert Introduction by Ellington and is followed by a German-English List of Terms and an Index.

This expanded edition of James Ellington's preeminent translations of "Grounding for the Metaphysics of Morals and Metaphysical Principles of Virtue" includes his new translation of Kant's essay On a Supposed Right to Lie Because of Philanthropic Concerns, in which Kant replies to one of the standard objections to his moral theory, as presented in the main text of "Grounding," that it requires us to tell the truth even in the face of harmful consequences.