Computers function as they do because they have been constructed by human beings endowed with rational insight. And the results of their computations are accepted because they are evaluated by rational human beings as conforming to rational norms. A computer, in other words, is merely an extension of the rationality of its designers and users, it is no more an independent source of rational insight than a television set is an independent source of news and entertainment.
I’ve seen things you people wouldn’t believe. Attack ships on fire off the shoulder of Orion. I watched c-beams … glitter in the dark near Tanhauser Gate. All those … moments will be lost … in time, like tears … in rain. Time … to die.
Our talk of external things, our very notion of things, is just a conceptual apparatus that helps us to foresee and control the triggering of our sensory receptors in the light of previous triggering of our sensory receptors. The triggering, first and last, is all we have to go on. In saying this I too am talking of external things, namely, people and their nerve endings. Thus what I am saying applies in particular to what I am saying, and is not meant as skeptical. There is nothing we can be more confident of than external things — some of them, anyway — other people, sticks, stones. But there remains the fact — a fact of science itself — that science is a conceptual bridge of our own making, linking sensory stimulation to sensory stimulation; there is no extrasensory perception.
Once, then, our thoughts were not rational. That is, all our thoughts once were, as many of our thoughts still are, merely subjective events, not apprehensions of objective truth. Those which had a cause external to ourselves at all were (like our pains) responses to stimuli. Now natural selection could operate only by eliminating responses that were biologically hurtful and multiplying those which tended to survival. But it is not conceivable that any improvement of responses could ever turn them into acts of insight, or even remotely tend to do so. The relation between response and stimulus is utterly different from that between knowledge and the truth known. Our physical vision is a far more useful response to light than that of the cruder organisms which have only a photo-sensitive spot. But neither this improvement nor any possible improvements we can suppose could bring it an inch nearer to being a knowledge of light. It is admittedly something without which we could not have had that knowledge. But the knowledge is achieved by experiments and inferences from them, not by refinement of the response. It is not men with specially good eyes who know about light, but men who have studied the relevant sciences. In the same way our psychological responses to our environment — our curiosities, aversions, delights, expectations — could be indefinitely improved (from the biological point of view) without becoming anything more than responses. Such perfection of the non-rational responses, far from amounting to their conversion into valid inferences, might be conceived as a different method of achieving survival — an alternative to reason. A conditioning which secured that we never felt delight except in the useful nor aversion save from the dangerous, and that the degrees of both were exquisitely proportional to the degree of real utility or danger in the object, might serve us as well as reason or in some circumstances better.
God, Freedom and Evil is a short work, originally published in the mid-1970s, wherein Plantinga addresses issues pertaining to the existence of God. The book draws upon the author’s prior works, “The Nature of Necessity” and “God and Other Minds”. A large part of the book is dedicated the so-called “problem of evil”. That is, the question of whether or not the existence of evil is compatible with the existence of an all-knowing, all-powerful and wholly good God. In addressing this issue Plantinga focuses on the question of whether evil and God can logically co-exist – it is not a theodicy, which seeks to explain the existence of evil. With regard to the former more modest question, Plantinga argues persusasively that evil and God are not incompatible as had been previously argued. Written nearly 30 years ago, his argument has yet to be challenged in any significant way. Plantinga can rightfully take credit in helping this question largely disappear amongst serious thinkers. Arguments in this area now tend to be focused on the level of evil rather than its mere existence (i.e. is there too much evil to be consistent with the existence of God). In the remainder of the book Plantinga offers some brief thoughts on the classic arguments of natural theology. ~ An Amazon.com Reader
Life After Life (New York: Bantam Books, 1976), 21-25, 181-84.
Despite the wide variation in the circumstances surrounding close calls
with death and in the types of persons undergoing them, it remains true
that there b a striking similarity among the accounts of the
experiences themselves. In fact the similarities among various reports
are so great that one can easily pick out about fifteen separate
elements which recur again and again in the mass of narrative that I
have collected. On the basis of these points of likeness, let me now
construe a brief, theoretically "ideal" or "complete" experience which
embodies all of the common elements, in the order in which it is
typical for them to occur. ¶ A man is dying and, as he reaches the
point of greatest physical distress, he hears himself pronounced dead
by his doctor. He begins to hear an uncomfortable noise, a low ringing
or buzzing, and at the same time feels himself moving very rapidly
through a long dark tunnel. After this, he suddenly finds himself
outside of his own physical body, but still in the immediate physical
environment, and he sees his own body from a distance, as though he is
a spectator. He watches the resuscitation attempt from this unusual
vantage point and is in a state of emotional upheaval. ¶ After a while,
he collects himself and becomes more accustomed to his odd condition.
He notices that he still has a "body," but one of a very different
nature and with very different powers from the physical body he has
left behind. Soon other things begin to happen. Others come to meet and
to help him. He glimpses the spirits of relatives and friends who have
already died, and a loving, warm spirit of a kind he has never
encountered before — a being of light — appears before him. This being
asks him a question, nonverbally, to make him evaluate his life and
helps him along by showing him a panoramic, instantaneous playback of
the major events of his life. At some point he finds himself
approaching some sort of barrier or border, apparently representing the
limit between earthly life and the next life. Yet, he finds that he
must go back to the earth, that the time for his death has not yet
come. At this point he resists, for by now he is taken up with his
It must be confessed, moreover, that perception, and that which depends on it are inexplicable by mechanical causes, that is, by figures and motions. And, supposing there were a machine so constructed as to think, feel and have perception, we could conceive of it as enlarged and yet preserving the same proportions, so that we ight enter it as a mill. And this granted, we should only find on visiting it, pieces which push one against another, but never anything by which to explain a perception. This must be sought for, therefore, in the simple substance and not in the composite or in the machine.
Harry G. Frankfurt (Stanford University Press: September 2006), 136 pages.
Harry G. Frankfurt begins these lectures by asking, "What is it about human beings that makes it possible for us to take ourselves seriously?" Based on the Tanner Lectures in Moral Philosophy, Taking Ourselves Seriously and Getting It Right delves into this provocative and original question. The author maintains that taking ourselves seriously presupposes an inward-directed, reflexive oversight that enables us to focus our attention directly upon ourselves, and "it means that we are not prepared to accept ourselves just as we come. We want our thoughts, our feelings, our choices, and our behavior to make sense. We are not satisfied to think that our ideas are formed haphazardly, or that our actions are driven by transient and opaque impulses or by mindless decisions. We need to direct ourselves — or at any rate to believe that we are directing ourselves — in thoughtful conformity to stable and appropriate norms. We want to get things right." The essays delineate two features that have a critical role to play in this: our rationality, and our ability to love. Frankfurt incisively explores the roles of reason and of love in our active lives, and considers the relation between these two motivating forces of our actions. The argument is that the authority of practical reason is less fundamental than the authority of love. Love, as the author defines it, is a volitional matter, that is, it consists in what we are actually committed to caring about. Frankfurt adds that "The object of love can be almost anything — a life, a quality of experience, a person, a group, a moral ideal, a tradition, whatever." However, these objects and ideals are difficult to comprehend and often in conflict with each other. Moral principles play an important supporting role in this process as they help us develop and elucidate a vision that inspires our love. ~ Product Description
Keith Ward (Oneworld Publications: May 1998), 176 pages.
Countering denials of the existence of the soul with a detailed examination of philosophical, anthropological, and scientific attacks on God, Professor Ward presents a convincing case for the role of human soul in the modern world. Denying the existence of the soul has devastating effects on our valuation of human beings maintains Ward in this closely argued book. He examines a diversity of philosophical, anthropological and scientific attacks on God and the reality of the human soul. Taking current scientific arguments back to their essentials, he presents a convincing case. Ward is one of Britain's foremost writers on comparative religion and Christian issues. ~ Product Description
"The Project of Natural Theology" in The Blackwell Companion to Natural Theology (Blackwell: 2009), p. 12.
In contemporary particle physics, objects without mass are posited with primitive charges or spins, which are presumed to be the basic foundations for explaining more complex events. Positing a basic power, terrestrial or divine, is not, ipso facto, explanatorily empty. ... In the sciences, we may well claim that with respect to any explanation, further questions can be asked of it, but this is not the same thing as claiming that science does not or cannot posit basic powers and accounts that are not themselves explained by further powers or scientific accounts. If the sciences can allow that subatomic particles have basic powers, it is hard to see how we can rule out that intentional agents have basic powers.
Richard H. Thaler and Cass R. Sunstein (Penguin Group: Feb 2009), 320 pages.
A groundbreaking discussion of how we can apply the new science of choice architecture to nudge people toward decisions that will improve their lives by making them healthier, wealthier, and more free. Yes, there is such a thing as common sense—and thank goodness for that. At least that's this reader's reaction to Richard Thaler and Cass Sunstein's Nudge, an engaging and insightful tour through the evidence that most human beings don't make decisions in the way often characterized (some would say caricatured) in elementary economics textbooks, along with a rich array of suggestions for enabling many of us to make better choices, both for ourselves and for society. ~ Benjamin M. Friedman of The New York Times
Trenton Merricks (Oxford University Press: Dec 11, 2003), 216 pages.
With ontology motivated largely by causal considerations, this lucid and provocative work focuses on the idea that physical objects are causally non-redundant. Merricks "eliminates" inanimate composite macrophysical objects on the grounds that they would — if they existed — be at best completely causally redundant. He defends human existence by arguing, from certain facts about mental causation, that we cause things that are not determined by our proper parts. He also provides insight into a variety of philosophical puzzles, while addressing many significant issues like free will, the "reduction" of a composite object to its parts, and the ways in which identity over time can "for practical purposes" be a matter of convention. Anyone working in metaphysics will enjoy this book immensely. ~ Book Description
David Bentley Hart (Eerdmans: Oct 31, 2004), 448 pages.
The Beauty of the Infinite is a splendid extended essay in "theological aesthetics." David Bentley Hart here meditates on the power of a Christian understanding of beauty and sublimity to rise above the violence — both philosophical and literal — characteristic of the postmodern world. The book begins by tracing the shifting use and nature of metaphysics in the thought of Kant, Hegel, Nietzsche, Heidegger, Lyotard, Derrida, Deleuze, Nancy, Levinas, and others. Hart pays special attention to Nietzsche’s famous narrative of the "will to power" — a narrative largely adopted by the world today — and he offers an engaging revision (though not rejection) of the genealogy of nihilism, thereby highlighting the significant "interruption" that Christian thought introduced into the history of metaphysics. This discussion sets the stage for a retrieval of the classic Christian account of beauty and sublimity, and of the relation of both to the question of being. The main section of the book offers a pointed reading of the Christian story in four moments, or parts: Trinity, creation, salvation, and eschaton. Through a combination of narrative and argument throughout, Hart ends up demonstrating the power of Christian metaphysics not only to withstand the critiques of modern and postmodern thought but also to move well beyond them. Strikingly original and deeply rewarding, The Beauty of the Infinite is both a constructively critical account of the history of metaphysics and a compelling contribution to it.
Searle stridently rejects current physicalist orthodoxies in the philosophy of mind, but instead of considering dualism, he offers his own monistic solution, "biological naturalism." More than anything else, he argues, it is the neglect of consciousness that results in so much barrenness and sterility in psychology, the philosophy of mind, and cognitive science: there can be no study of mind that leaves out consciousness.
"Introduction" in Modern Philosophy of Mind (Everyman: 1995), p. iv.
Physicalism] seem[s] to be in tune with the scientific materialism of the twentieth century because it [is] a harmonic of the general theme that all there is in the universe is matter and energy and motion and that humans are a product of the evolution of species just as much as buffaloes and beavers are. Evolution is a seamless garment with no holes wherein souls might be inserted from above.
Why There Is Something Rather Than Nothing? (Clarendon Press: 2004), pp. 76-7.
The idea that an ultimate source of being and becoming is to be found in the purely mental and non-physical is at odds with the conception of mind espoused by most contemporary philosophers. It is commonly held that mental states are to be characterized in terms of their causal role, but since such states are thought to be states of the brain, there is no lessening of a dependence on the physical. This is not a position I wish to invoke. It is doubtless true that we could not believe, desire, or intend without a brain, but any attempt to construe belief and the rest as states of that organ involves a serious mismatch between the psychological concepts and physical reality. Beliefs can be obsessive, unwavering, irrational, or unfounded, but nothing inside anyone's head answers to such descriptions.
"The Empty Universe" in Present Concerns, W. Hopper, ed. (Harcourt Brace: 1986), pp. 81-2.
The process whereby man has come to know the universe is from one point of view extremely complicated; from another it is alarmingly simple. We can observe a single one-way progression. At the outset, the universe appears packed with will, intelligence, life, and positive qualities; every tree is a nymph and every planet a god. Man himself is akin to the gods. The advance gradually empties this rich and genial universe, first of its gods, then of it colours, smells, sounds and tastes, finally of solidity itself as solidity was originally imagined. As these items are taken from the world, they are transferred to the subjective side of the account: classified as our sensations, thoughts, images or emotions. The Subject becomes gorged, inflated, at the expense of the Object. But the matter does not rest there. The same method which has emptied the world now proceeds to empty ourselves. The masters of the method soon announce that we were just mistaken (and mistaken in much the same way) when we attributed "souls" or "selves" or "minds" to human organisms, as when we attributed Dryads to the trees. Animism, apparently, begins at home. We, who have personified all other things, turn out to be ourselves mere personifications. Man is indeed akin to the gods, that is, he is no less phantasmal than they. Just as the Dryad is a "ghost," an abbreviated symbol for certain verifiable facts about his behaviour: a symbol mistaken for a thing. And just as we have been broken of our bad habit of personifying tees, so we must now be broken of our habit of personifying men; a reform already effected in the political field. There never was a Subjective account into which we could transfer the items which the Subject had lost. There is no "consciousness" to contain, as images or private experiences, all the lost gods, colours, and concepts. Consciousness is "not the sort of noun that can be used that way."
"Mind and Illusion" in Minds and Persons, Anthony O'Hear, ed. (Cambridge University Press: 2003), p. 251.
Much of the contemporary debate in the philosophy of mind is concerned with the clash between certain strongly held intuitions and what science tells us about the mind and its relation to the world. What science tells us about the mind points strongly towards some version or other of physicalism. The intuitions, in one way or another, suggest that there is something seriously incomplete about any purely physical story about the mind. For our purposes here, we can be vague about the detail and think broadly of physicalism as the view that the mind is a purely physical part of a purely physical world. Exactly how to delineate the physical will not be crucial: anything of a kind that plays a central role in physics, chemistry, biology, neuroscience and the like, along with the a priori associated functional and relational properties count as far as we are concerned. Most contemporary philosophers given a choice between going with science and going with intuitions, go with science. Although I once dissented from the majority, I have capitulated and now see the interesting issue as being where the arguments from the intuitions against physicalism — the arguments that seem so compelling — go wrong. For some time, I have thought that the case for physicalism is sufficiently strong that we can be confident that the arguments from the intuitions go wrong somewhere, but where is somewhere?
The historic Christian position is that man’s dilemma has a moral cause. God, being nondetermined, created man as a nondetermined person. This is a difficult idea for anyone thinking in twentieth-century terms because most twentieth-century thinking sees man as determined. He is determined either by chemical factors, as the Marquis de Sade held and Francis Crick is trying to prove, or by psychological factors, as Freud and others have suggested, or by sociological factors, such as B.F. Skinner holds. In these cases, or as a result of a fusion of them, man is considered to be programmed. If this is the case, then man is not the tremendous thing the Bible says he is, made in the image of God as a personality who can make a free first choice. Because God created a true universe outside of himself (or as an extension of his essence), there is a true history which exists, man as created in God’s image is therefore a significant man in a significant history, who can choose to obey the commandments of God and love him, or revolt against him.
We are compelled to admit between the thoughts of a terrestrial astronomer and the behaviour of matter several light-years away that particular relation which we call truth. But this relation has no meaning at all if we try to make it exist between the matter of the star and the astronomer’s brain, considered as a lump of matter. The brain may be in all sorts of relations to the star no doubt: it is in a spatial relation, and a time relation, and a quantitative relation. But to talk of one bit of matter as being true about another bit of matter seems to me to be nonsense.
The freedom we have identified as circumstantial is variously called “economic freedom,” “political freedom,” “civil liberty,” “individual freedom,” “the freedom of man in society,” “freedom in relation to the state,” and “external freedom.” It is sometimes referred to negatively as “freedom from coercion or restraint,” “freedom from restrictions,” or “freedom from law,” and sometimes positively as “freedom of action,” “freedom of spontaneity,” or “freedom under law.” [Adler referred to it as freedom of “Self-Realization”]
It is something of a truism that in philosophic enquiry the exact formulation of a problem often takes one a long way takes one a long way on the road to its solution. In the ca se of the Free Will problem I think there is a rather special need of careful formulation. For there are many sorts of human freedom; and it can easily happen that one wastes a great deal of labour in proving or disproving a freedom which has almost nothing to do with the freedom which is at issue in the traditional problem of Free Will. The abortiveness of so much of the argument for and against Free Will in contemporary philosophical literature seems to me due in the main to insufficient pains being taken over the preliminary definition of the problem. There is, indeed, one outstanding exception, Professor Broad’s brilliant inaugural lecture entitled, ‘Determinism, indeterminism, and Libertarianism,” in which forty three pages are devoted to setting out the problem, as against seven to its solution! I confess that the solution does not seem to myself to follow upon the formulation quite as easily as all that:’ but Professor Broad’s eminent example fortifies me in my decision to give here what may seem at first sight a disproportionate amount of time to the business of determining the essential characteristics of the kind of freedom with which the traditional problem is concerned.
The difficulty of explaining even a boy’s thought entirely in terms of his wishes is that on such large questions as these he always has wishes on both sides. Any conception of reality a sane mind can admit must favor some of its wishes and frustrate others.