Following an ardent debate in the 1930s on the question over whether something like a “Christian philosophy” exists, as Etienne Gilson, Jacques Maritain, and others held, the term was used by many thinkers and rejected by many others, not only by Heidegger who called it a contradiction in terms, an “iron wood,” but also by Thomists who wanted to see philosophy and Christian faith strictly separated. Seifert analyses five understandings of the term “Christian philosophy” which have never been expounded with such clarity and which he rejects for different, partly for opposite, reasons. He presents these senses of Christian philosophy, and his reasons for rejecting them, in clear, straight-forward language. He presents for the first time a series of eleven wholly different and thoroughly positive and fruitful ways of understanding the (rather misleading) term “Christian philosophy.” Identifying and distinguishing these legitimate ways to speak of “Christian philosophy” shed light on the manifold fruitful relations between reason and faith. In a second part of the book, Seifert gives an example of Christian philosophy in the sense of a philosophy of religion that shows the absolute presupposedness and necessity of the existence of human, divine, and angelic free will to make any sense of divine revelation and of Christian (but also of Muslim and Jewish) religion. In a third part, he presents a penetrating analysis of seven indubitable evidences that demonstrate the nature and real existence of human free will (in a so-called “libertarian” sense that rejects the thesis of the compatibility between free will and determinism). The book is introduced by the eminent Thomist philosopher, John Finnis.

Are we entitled to be confident that our moral judgements can be objective? Can they express insights into aspects of reality, rather than mere feelings, tastes, desires, decisions, upbringing, or conventions? Why must we consider some of our choices to be free, and how do our free choices matter? How far should our moral judgements be based on assessments of expected consequences? Can utilitarianism, and other consequentialist or proportionalist theories, be anything more than the rationalization of positions taken on other grounds?

The main theme of this book is the challenge to ethics from philosophical scepticism and from contemporary forms of consequentialism. But in seeking to meet this challenge, the book develops a sustained philosophical argument about many of the central questions of ethics. It reviews classical positions, and challenges some long-influential interpretations of those positions. It also reviews and participates in some recent developments and controversies in Anglo-American ethical theory.

The activity of ethical theorizing itself is shown to be a matter of free and intelligent decision, in pursuit of intelligible good; it thus provides a test-case for any ethical theory.

Moral Absolutes sets forth a vigorous but careful critique of much recent work in moral theology. It is illustrated with examples from the most controversial aspects of Christian moral doctrine, and a frank account is given of the roots of the upheaval in Roman Catholic moral theology in and after the 1960s.

"Public reason" is one of the central concepts in modern liberal political theory. As articulated by John Rawls, it presents a way to overcome the difficulties created by intractable differences among citizens' religious and moral beliefs by strictly confining the place of such convictions in the public sphere.

Identifying this conception as a key point of conflict, this book presents a debate among contemporary natural law and liberal political theorists on the definition and validity of the idea of public reason. Its distinguished contributors examine the consequences of interpreting public reason more broadly as "right reason," according to natural law theory, versus understanding it in the narrower sense in which Rawls intended. They test public reason by examining its implications for current issues, confronting the questions of abortion and slavery and matters relating to citizenship.

This energetic exchange advances our understanding of both Rawls's contribution to political philosophy and the lasting relevance of natural law. It provides new insights into crucial issues facing society today as it points to new ways of thinking about political theory and practice.