Tag Archives: Graham Priest

Living with doubt

05 Sunday Dec 2010

Posted by in Analytic Tradition, Buddhism, Certainty and Doubt, Courage, Fear, French Tradition, Greek and Roman Tradition, Humility, Leadership, Philosophy of Language

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I’d like to say some more about questions of doubt and certainty, which were central to my recent discussion of Wittgenstein. I explored this question at greatest length in the post called “Certain knowledge”, but the conclusions there were tentative – which is to say, not certain.

To recap a little first: This question was Descartes‘s biggest passion. He wanted one and only one Archimedean point, one firm foundation that could not be doubted, on which he could build the rest of his philosophy. And to doubt that he was doubting would be self-contradictory, so the existence of his doubt and therefore of his own existence became certain. “I think, therefore I am.”

But Descartes was wrong: the existence of the thinking self can be, and is, doubted all the time. Almost all Buddhist tradition rests on just such a doubt: the self is not real. If there is an indubitable Cartesian foundation, one must take it back to “There is thinking, therefore there is being.” But is there even this? Descartes argues that to doubt one’s own doubt (or doubt one’s own thinking) is self-contradictory. To establish this point for certain, however, does require that one accept the logic law of non-contradiction – and accept it as an absolute law, brooking no exceptions ever. Graham Priest’s dialetheist epistemology denies this very point: only by allowing that certain contradictions can be true, he says, can we successfully resolve the liar paradox or Zeno’s paradoxes. Continue reading →

Why we should ask what science is

15 Sunday Aug 2010

Posted by in Analytic Tradition, Epistemology, Metaphilosophy, Philosophy of Science

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Since my post on Pierre Hadot, I’ve come to realize that genuinely philosophical thought today must include elements of the domains usually called “religion” and “science” (and that those two domains must overlap to some degree). Having done a degree in religious studies, I’ve thought through the concept of “religion” a lot – mostly to identify what a misleading category it is, though of course the phenomena it typically points to matter a lot.

But what about science? It’s intriguing to me that for one of the most highly regarded philosophers of science, Karl Popper, the central problem in philosophy of science is demarcation. That is to say, for Popper, the most important thing philosophy of science needs to do is to distinguish science from non-science.

At first this seems an oddly defensive position to take. Compare “philosophy of science” in this regard to “philosophy of religion.” Continue reading →

Consequentialism and lying to oneself

31 Wednesday Mar 2010

Posted by in Analytic Tradition, Family, Foundations of Ethics, Happiness, Honesty, Prayer, Protestantism, Psychology, Truth

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I’ve been noticing a topic I’ve dealt with repeatedly in other contexts but would like to address head on: the possibility of deliberately lying to oneself, of intentionally believing things that aren’t true. I spoke before of “noble lies” to others, but not to oneself.

The point seems to come up again and again, for there are many reasons why trying to believe false things might prove valuable. In cases where one’s children make one less happy, one is still a better parent if one falsely believes that children make one happy. Some psychologists suggest the possibility of depressive realism: the idea that depressed people actually view the world more accurately than others. In a comment I noted the happiness often radiated by evangelical Christians: should one perhaps try to become such a person even if their God doesn’t exist? Last time the point came up in speaking of prayer: there seem to be real benefits from prayer, but it might require belief in an entity that isn’t real.

Now in every one of these cases, the good thing about lying to oneself has something in common: it is a good result. Continue reading →

What does postmodernism perform?

21 Sunday Feb 2010

Posted by in Analytic Tradition, Epistemology, Faith, French Tradition, Greek and Roman Tradition, Islam, Logic, Metaphilosophy, Metaphysics, Modern Hinduism, Politics, Sex, Sophists, Truth

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The term “postmodernism” (or “poststructuralism”) is notoriously elusive; it’s sometimes said that if you think you know what it is, you don’t. But that doesn’t stop its practitioners from talking about it, and I don’t think it should stop anyone else either. I will use “postmodernism” to refer to a set of ideas, widely held among academics in the past 30 years, which takes inspiration from Jacques Derrida and Michel Foucault, and denies the worth of claims to truth. One will frequently find postmodernists (John Caputo is one of the more explicit about this) claiming that “the truth is that there is no truth.”

The claim that there is no truth is false. It contains a contradiction that cannot be resolved unless one takes it to mean something very different from what it appears to mean. Nor is this one of that narrow group of paradoxes which could be taken as true on the grounds of Graham Priest’s dialetheism. Priest tries to argue that most of the problems with contradiction stem not from accepting some contradictions, but from accepting all; but if one accepts “there is no truth,” one comes much closer to allowing all contradictions in. Indeed postmodernists often approvingly quote the philosopher of science Paul Feyerabend in telling us that “anything goes.”

It is not true that there is no truth. What is crucial about this and other postmodern claims, however, is that its truth value is not the point. Like Stanley Fish, postmodernists shift our attention away from contradiction and truth entirely, claiming they’re not the important thing. (Caputo at one point approves one of his opponent’s moves because “it drops the stuff about contradiction and actually addresses the issues.”) Drawing on J.L. Austin’s theory of speech acts, postmodernists will argue that the reason to make such a claim against truth is its performative dimension. The point, that is, is not what the sentence says, but what it does.

It is on this last point, however, that the evidence against postmodernism seems strongest. What, exactly, has postmodernism accomplished? I have previously mentioned cognitive dissonance and spiritual transformation as reason to be concerned about contradictions. But these are typically not at the forefront of postmodern concern. Rather, most postmodern writers express some sort of concern for marginalized political groups – women, gays, transgendered people, the poorer or working classes, people in nonwhite racial groups, people from colonized societies. But what has postmodernism actually done to improve their situation?
Continue reading →

Truth and contradiction beyond propositions

14 Sunday Feb 2010

Posted by in African Thought, Analytic Tradition, Christianity, East Asia, German Tradition, God, Greek and Roman Tradition, Logic, Metaphysics, Modern Hinduism, Philosophy of Language, Truth, Vedānta

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What do Augustine, Gandhi, Śaṅkara, Marx and Mao all have in common? Something quite important. But before answering this question, a brief excursus on Marx’s inspiration, G.W.F. Hegel.

In reading Graham Priest’s work, I was particularly struck by a point Priest makes at length in his Stanford Encyclopedia article: that Hegel believes there can be true contradictions, and is in that sense a dialetheist. I think Priest is technically right, but the point can be a bit misleading.

First, Hegel accepts the normative force of non-contradiction, in a way that Priest also does but tends to push to the sidelines. That is: while it’s possible for contradictions to be true, there’s also something about them that is epistemologically bad. As I noted last time, Priest accepts this point himself, so that when he says “What is so bad about contradictions? Maybe nothing,” he is effectively being disingenuous for rhetorical effect. For Priest, contradictions are epistemologically bad only in that the probability of a contradiction being true is generally low. For Hegel the problem with contradictions is something significantly bigger: a true contradiction eventually and inevitably becomes false.

This point leads into a bigger difference that goes well beyond Hegel’s and Priest’s work, which is what I really want to address today. Priest generally imagines contradictions as existing between linguistic truth-bearers of some description. He says at the beginning of the SEP entry that “we shall talk of sentences throughout this entry; but one could run the definition in terms of propositions, statements, or whatever one takes as her favourite truth-bearer: this would make little difference in the context.” But some objects taken to bear truth could, I think, change the nature of the claim significantly. Priest’s truth-bearers are statements, beliefs, propositions – all mere linguistic mental or verbal objects. But not everyone has taken truth-bearers to be of this kind. The most vivid exception may be Saint Augustine, about whom Alasdair MacIntyre put the matter beautifully:

for Augustine it is in terms of the relationships neither of statements nor of minds that truth is to be primarily characterized and understood. “Veritas,” a noun naming a substance, is a more fundamental expression than “verum,” an attribute of things, and the truth or falsity of statements is a tertiary matter. To speak truly is to speak of things as they really and truly are; and things really and truly are in virtue only of their relationship to veritas. So where Aristotle locates truth in the relationship of the mind to its objects, Augustine locates it in the source of the relationship of finite objects to that truth which is God. (Three Rival Versions of Moral Inquiry, p. 110)

Here not merely statements or beliefs but things are true – by virtue, I think, of their genuineness, their closeness to a Platonic Form of goodness which, for Augustine, turns out to be God himself. Continue reading →

Dialetheism

03 Wednesday Feb 2010

Posted by in Analytic Tradition, Greek and Roman Tradition, Logic, Mahāyāna, Pre-Socratics, Truth

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In response to last week’s post about contradictions, a reader who goes by “skholiast” (who has his own blog, Speculum Criticum Traditionis) pointed me to the interesting work of analytic philosopher Graham Priest, author of works with provocative titles like “What is so bad about contradictions?” Priest advocates a position that he calls dialetheism, from the Greek for “two truths,” according to which a belief or statement and its opposite can both be true – even at the same time and in the same respect, directly contradicting Aristotle’s classical law of non-contradiction. He concludes the article with this provocative claim: “So what is so bad about contradictions? Maybe nothing.”

Dialetheism is easy to mock. Indeed, the first I’d heard of it, and the only time I’d heard of it before skholiast’s post, was in two of Ryan Lake’s Chaospet comics that made fun of it. Lake’s comics note apparent problems with dialetheism: if nothing is bad about contradictions, as Priest suggests, then doesn’t that basically allow one to say anything at all? Doesn’t one then just immediately solve every hard problem without having to think about it, by saying (as Lake’s character Nester does) that “the mind both is and is not the brain”?
Continue reading →