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Certainty
A Refutation of Scepticism
Peter D. Klein
University of Minnesota Press, 1981

Certainty was first published in 1981. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.

Philosophers have traditionally used two strategies to refute the sceptical that empirical knowledge is not possible because our beliefs cannot be adequately justified. One strategy rejects the sceptics' position because it conflicts with the supposedly obvious claim that we do have knowledge. The other defends an analysis of knowledge limited to a weak set of necessary and sufficient conditions of knowledge or limited to a set of conditions specifically designed to be immune to sceptical attack.

In Certainty: A Refutation of Scepticism, Peter D. Klein uses a third strategy. He argues that scepticism can be refuted even if it is granted to the sceptics that knowledge entails absolute certainty. The argument for his thesis has two parts. He identifies the various types of scepticism and shows that the arguments for them depend upon epistemic principles which, when examined carefully, are unable to support the sceptical conclusions. Klein then argues — contrary to the views of most nonsceptics—that knowledge entails certainty and that some empirical beliefs are absolutely certain. In the course of his argument Klein develops and defends an account of justification, knowledge, and certainty. The result is a theory of knowledge based upon a model of justification designed to be acceptable to sceptics, nonsceptics, foundationalists, and coherentists.
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front cover of The Last Superstition
The Last Superstition
A Refutation of the New Atheism
Edward Feser
St. Augustine's Press, 2010

The central contention of the “New Atheism” of Richard Dawkins, Daniel Dennett, Sam Harris, and Christopher Hitchens is that there has for several centuries been a war between science and religion, that religion has been steadily losing that war, and that at this point in human history a completely secular scientific account of the world has been worked out in such thorough and convincing detail that there is no longer any reason why a rational and educated person should find the claims of any religion the least bit worthy of attention.

But as Edward Feser argues inThe Last Superstition, in fact there is not, and never has been, any war between science and religion at all. There has instead been a conflict between two entirely philosophical conceptions of the natural order: on the one hand, the classical “teleological” vision of Plato, Aristotle, Augustine, and Aquinas, on which purpose or goal-directedness is as inherent a feature of the physical world as mass or electric charge; and the modern “mechanical” vision of Descartes, Hobbes, Locke, and Hume, according to which the physical world is comprised of nothing more than purposeless, meaningless particles in motion. As it happens, on the classical teleological picture, the existence of God, the immortality of the soul, and the natural-law conception of morality are rationally unavoidable. Modern atheism and secularism have thus always crucially depended for their rational credentials on the insinuation that the modern, mechanical picture of the world has somehow been established by science. Yet this modern “mechanical” picture has never been established by science, and cannot be, for it is not a scientific theory in the first place but merely a philosophical interpretation of science. Moreover, as Feser shows, the philosophical arguments in its favor given by the early modern philosophers were notable only for being surprisingly weak. The true reasons for its popularity were then, and are now, primarily political: It was a tool by which the intellectual foundations of ecclesiastical authority could be undermined and the way opened toward a new secular and liberal social order oriented toward commerce and technology. So as to further these political ends, it was simply stipulated, by fiat as it were, that no theory inconsistent with the mechanical picture of the world would be allowed to count as “scientific.” As the centuries have worn on and historical memory has dimmed, this act of dogmatic stipulation has falsely come to be remembered as a “discovery.”

However, not only is this modern philosophical picture rationally unfounded, it is demonstrably false. For the “mechanical” conception of the natural world, when worked out consistently, absurdly entails that rationality, and indeed the human mind itself, are illusory. The so-called “scientific worldview” championed by the New Atheists thus inevitably undermines its own rational foundations; and into the bargain (and contrary to the moralistic posturing of the New Atheists) it undermines the foundations of any possible morality as well. By contrast, and as The Last Superstition demonstrates, the classical teleological picture of nature can be seen to find powerful confirmation in developments from contemporary philosophy, biology, and physics; moreover, morality and reason itself cannot possibly be made sense of apart from it. The teleological vision of the ancients and medievals is thereby rationally vindicated – and with it the religious worldview they based upon it.

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front cover of Refutation of All Heresies
Refutation of All Heresies
M. David Litwa
SBL Press, 2016

A reliable, readable translation for scholars and students

The Refutation of All Heresies (ca. 225 CE) is a treasure-trove of ancient philosophy, astrology, medicine, magic, Gnostic thought, numerology, heresiography, ecclesial politics, and early Christian studies in general. Offered here for the first time in almost a century is a full English translation, along with a newly-edited Greek text, extensive notes, and a thorough introduction.

Features:

  • A full English translation with extensive notes
  • Newly edited Greek text that avoids the pitfalls of the most recent edition
  • A thorough-going introduction that addresses the questions of authorship, date, and audience, as well as the purpose of the book, its organization, method, and importance for Gnostic studies
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