New in paperback. Hardcover was published in 2016. Building on the work of important tinkers of the last half-century, including Leo Strauss, Eric Voegelin, John Finnis, Bernard Lonergan, and others, the essays in this volume compare and contrast classical, medieval, and modern conceptions of nature in order to better understand how and why the concept of nature no longer seems to provide a limit or standard for human action.