Friday, March 23, 2012

The Euthyphro Dilemma

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This blog entry is part 4 in a series on the moral argument. The entries in the series:
  1. The Moral Argument for God Part 1: Going from Morality’s Existence to God’s Existence
  2. The Moral Argument for God Part 2: Does Objective Morality Exist If God Does Not Exist?
  3. The Moral Argument for God Part 3: Does Objective Morality Exist?
  4. The Euthyphro Dilemma
  5. Epilogue: Awakening the Sensus Divinitatis
To sum it up so far I’ve basically argued that God is the basis of objective morality, and that objective morality is evidence for God’s existence. That brings us to the famous Euthyphro argument against God grounding morality.

The Euthyphro Dilemma

The name of the Euthyphro dilemma goes back to Plato’s Euthyphro in which Socrates asks Euthyphro if the gods love something because it is holy, or if it is holy because the gods love it. Applied here, the Euthyphro dilemma goes something like this: for any X that is good, “Does God will it because X is good, or is X good because God wills it?” On the first horn of the dilemma (God wills X because it is good), what goodness is becomes external to God, and therefore isn’t grounded in God. God simply recognizes what is good and then wills it. On the second horn of the dilemma (X is good because God wills it) God arbitrarily creates what goodness is in the sense that it could have been anything; God could have created goodness in such a way that it is good to torture infants just for fun, for example. So no matter which horn of the dilemma the theist picks, it doesn’t look plausible that God is the foundation of morality.

So the objection goes. One problem with the Euthyphro dilemma is that it is a false dilemma. It is not an “A or not-A” type dichotomy (e.g. “it is raining or it is not raining”) but rather an “A or B” type dichotomy (e.g. “the ball is green or the ball is red”) that does not exhaust all the options. A third option to the false dilemma is that what God wills is good because he is good. One view is that God is what Plato called the Good (the paradigm or model of what goodness is). God’s perfectly holy nature is the standard of moral goodness; e.g. God is by nature loving and just, and these attributes become moral virtues for us. As an analogy, the fidelity of an audio recording of a symphony is measured against how closely it matches the actual, original performance; the original performance sets the standard for audio fidelity. Similarly, God’s perfectly holy nature sets the standard of what moral goodness is.

If the conception of God we’re using includes God being the Good, applying a Euthyphro style dilemma becomes problematic. It doesn’t seem sensible to ask, “Is the Good good because it creates the Good (the paradigm/model of what goodness is), or is the Good good because the Good is external to it and it recognizes the Good?” If there were an answer to this question it would be something like, “Neither.” The Good does not (arbitrarily or otherwise) create the Good, the Good is the Good. It’s also not true that the Good is external to the Good; the Good is the Good. Or to make it more explicit for the Euthyphro dilemma: it isn’t true that God creates the Good (the paradigm/model of what goodness is), God is the Good; it’s also not true that the Good is external to God, because God is the Good.

Still, let’s ignore the problem of the false dilemma and consider the objection that if morality is grounded in God in any way, morality becomes arbitrary in the sense that God could (via divine commands or via his nature or via some other mechanism) make anything morally wrong/right/good/bad/etc.; e.g. God could have made torturing infants just for fun ethical. We can follow this train of thought with the following deductive argument:
  1. If God is the basis of morality, then it is possible for God to make torturing infants just for fun ethical.
  2. If it is possible for God to make torturing infants just for fun ethical, then it is possible for torturing infants just for fun to be ethical.
  3. It is not possible for torturing infants just for fun to be ethical.
  4. Therefore, God is not the basis of morality.
The above argument is valid, but there’s a problem. If torturing infants just for fun cannot possibly be ethical, then it also cannot be possible for the basis of morality—whatever that is—to make such torture ethical. But then why on earth believe that if God is the basis of morality that he could make it ethical?

Perhaps because God is omnipotent, but God’s omnipotence as accepted by modern theists is more limited than the ability to do literally anything. Rather, God’s omnipotence is more accurately understood as being “maximally powerful” since most theists recognize that there are some things that even God cannot do, like create a married bachelor. The theist could also posit other limits on God’s behavior, which incidentally is nothing new. For example, the idea that God cannot lie goes at least as far back as early Christianity.[1] Similarly, many theists believe there is no possible world where God creates another deity and worships it. We can also conceive of God as being necessarily loving and just, which would therefore prevent any divine commands from being arbitrary.

If it is impossible for torturing infants just for fun to be ethical, then it is equally impossible for the basis of morality—whatever that is—to make it ethical. It follows logically and inescapably then that if God is the basis of morality then he cannot make it ethical either.[2] If it is impossible for the basis of morality to make such torture ethical, we might reason that the basis of morality has some type of immutable, necessary nature such that it can never make it ethical. There doesn’t appear to be any reason to think that God does not or cannot have that nature if he were the basis of morality. All things considered then, the objection that grounding morality in God would make morality arbitrary doesn’t work.



[1] See Hebrews 6:18 and Titus 1:2.

[2] The conception of God I’m using is that as the supreme authority in the universe he grounds moral obligations essentially, i.e. that he is the source of moral obligation in all those possible worlds that he exists. Even if I wasn’t using that conception of God though, it’s still an important thing to keep in mind is that in all possible worlds where God does ground moral obligations, he cannot command people to torture infants just for fun if it is impossible for such an act to be ethical.



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Thursday, March 22, 2012

Does Objective Morality Exist? (p. 3)

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Does Objective Morality Exist?
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Considering Alternatives

Another way to justify moral objectivism is to note how badly the alternatives work. One might balk at accepting “there is nothing morally wrong with knowingly torturing infants just for fun,” but to maintain that there is something morally wrong with torturing infants just for fun without accepting moral objectivism, one would have to accept some form of ethical relativism. Ethical relativism (or moral relativism) agrees with moral objectivism that morality exists but unlike moral objectivism says that moral truths are relative to human opinion. For example, a belief called cultural relativism (which goes by various other names, such as conventional ethical relativism and conventionalism) says that morality is relative to cultural opinion in such a way that the culture believing that a certain action is morally right/wrong/good/bad/etc. makes that action morally right/wrong/good/bad/etc. for that culture. If for instance a culture believed it was wrong to walk naked in the streets, it would be morally wrong for people in that culture to do that, whereas in a nudist community it wouldn’t be.

The problem with ethical relativism however is that it doesn’t seem to work. For starters, let’s take another look at cultural relativism. One might be tempted to advocate cultural relativism in the name of tolerance, but if a culture believed it was morally right to practice intolerance, then according to cultural relativism people in that culture ought to be intolerant. If for instance a culture believed violent anti-Semitism to be morally right, then it becomes morally right for that culture. Someone else might think the culture is doing something morally wrong, but on cultural relativism such a person would be mistaken because the culture thinks it is morally right and that is enough to make it morally right for that culture. Cultural relativism is clearly implausible.

A version of moral relativism called ethical subjectivism (which also goes by various names, e.g. subjective ethical relativism) says that the individual believing an action to be morally right/wrong/good/bad/etc. makes that action morally right/wrong/good/bad/etc. for that person. So if Adolph thinks that torturing infants just for fun is morally obligatory and not morally wrong, then it is morally right for Adolph to do it. If Oskar believes torturing infants just for fun is morally wrong, then it is wrong for Oskar to do it. Under ethical subjectivism, Oskar can believe it is wrong for Adolph to torture infants just for fun, but that belief would be mistaken because Adolph thinks otherwise, and so on ethical subjectivism Adolph has a moral duty to torture infants just for fun. Ethical subjectivism is likewise implausible.

Examples of this sort could be multiplied, and we can symbolize the structure of the sort of argument used thus far to refute alternatives to moral objectivism. First, some quick symbolic logic stuff (I promise it’s painless):

EnglishSymbolic Logic
 
If p is true, then q is truep → q
If p were true, then q would be truep □→ q
Not-p (p is false)¬p


That there is a difference between “If p is true, then q is true” and “If p were true, then q would true” can be revealed by observing that one can believe “If Oswald didn’t shoot Kennedy, someone else did” without believing “If Oswald didn’t shoot Kennedy, someone else would have.” A useful rule of logic called modus tollens goes like this:

modus tollens
 
In English In Symbolic Logic
If p then q
Not-q

Therefore, not-p
p → q
¬q

∴ ¬p


The above arguments against the alternatives to moral objectivism take the following form, where P is some challenged proposition (e.g. “ethical subjectivism is true”), T denotes a thought experiment (e.g. a man torturing infants just for fun and never believing there’s anything wrong with it), and R denotes the questionable result of the thought experiment (e.g. the man torturing infants just for fun isn’t doing anything morally wrong):
  1. P → (T □→ R)
  2. ¬(T □→ R)

  1. ¬P 1, 2, modus tollens
The conclusion (line 3) follows logically and necessarily from the premises (lines 1 and 2) by the rules of logic, and thus for the conclusion to be false a premise must be false. Putting the argument in symbolic logic also helps see why certain objections don’t work. One could object saying that the state of affairs described in T (e.g. the man torturing infants just for fun believing it to be morally right) has never happened and will never happen. That may be true, but such an objection doesn’t attack either premise of the argument, and if both premises are true the conclusion follows whether one likes it or not. One could also criticize the argument by noting that the state of affairs described in T is an extreme and contrived example. Maybe that’s true, but again that doesn’t attack any premise of the argument.

Consequently, it’s difficult to convincingly attack “If a man believed it was morally right to torture infants just for fun…” type arguments. One wants to avoid promoting an alternative with unacceptable consequences. One also wants to avoid the apparently unacceptable consequences of denying moral objectivism. For example, a quick case for moral objectivism could go like this:
Consider this hypothetical scenario. The only humans who ever existed are a community of men and infants, both of which are grown in a lab (we might additionally posit that an improbable convergence of undirected natural processes created the first human-growing lab, or else that the process of growing humans in a lab has been going on eternally). To replace the men who die, the community creates fully grown men in the lab. Throughout all time, every human who has ever lived has agreed that torturing infants just fun and killing them are morally right. The community of men grow infants in the lab and then torture them to death just for fun. As these men sadistically torture infants for the sheer fun of it, would this action be morally wrong in spite of their opinion to the contrary? Would that action be morally wrong independently of their opinion?
If the answer to both questions is “Yes” that would seem to suggest that there is at least one objective moral truth. To see why, first we can ask ourselves this question: would moral objectivism be true in that scenario? If the scenario were actualized, every existing human’s opinion would be that the act of torturing infants just for fun is morally right, and so for that action to be morally wrong regardless of their opinion, it would have to be morally wrong regardless of any human opinion that exists (bear in mind we are talking about human opinions that exist in this scenario). But if in that scenario the action’s moral wrongness would hold independently of any existing human opinion, the only way to prevent the action’s moral wrongness from holding independently of all human opinion in that scenario is if the action’s moral wrongness were somehow dependent on nonexistent human opinion, which doesn’t seem very plausible. Since in that scenario the action’s moral wrongness would hold independently of human opinion, moral objectivism (a moral property existing independently of human opinion) would be true in that scenario. Yet if in this scenario the moral wrongness of torturing infants just for fun would exist independently of human opinion, it seems that the moral wrongness of such torture would hold independently of human opinion in the real world also.

In spite of the above argument, one might still be tempted to say that if this community actually existed alongside dissenting opinion like ours, the action would be morally wrong relative to our opinion, but it would be morally right relative to the hypothetical community of baby torturers. But that sort of relativism runs the risk of incoherency, and we must distinguish between coherent and incoherent forms of ethical relativism. As mentioned in part 1 on the moral argument, an action is morally wrong for subject S only if S ought not to do it, and an action is morally right for S only if S ought do it. Ethical subjectivism says that if Adolph thinks that torturing infants just for fun is morally right, then it is morally right for Adolph to do it. If Oskar believes torturing infants just for fun is morally wrong, then it is wrong for Oskar to do it. Whether ethical subjectivism is correct, it at least produces a non-contradictory answer to the question “Should Adolph torture infants just for fun?” In this way ethical subjectivism is a coherent form of ethical relativism. But what is not coherent is the belief (which I’ll call “pseudo-relativism”) that right and wrong do exist, where Adolph thinks its morally right for him torture infants just for fun and Oskar thinks it is morally wrong for Adolph to torture infants just for fun and have them both be right. Pseudo-relativism cannot give a coherent answer to question “Should Adolph torture infants just for fun?” It might be able to reiterate the beliefs of people about whether Adolph should torture infants just for fun but it cannot answer the question. Pseudo-relativism is not a coherent ethical system, so it would not be a good way to reject moral objectivism while maintaining the moral wrongness of torturing infants just for fun.

To drive the point home further, imagine that Oskar is a pseudo-relativist who is incapable of lying. Adolph comes to believe that pseudo-relativism is true but isn’t quite sure he understands it, so Adolph asks Oskar, “I believe I am morally obligated to torture infants just for fun, but should I do it?” What can Oskar as an honest pseudo-relativist say? Oskar can’t say “Yes” because he believes Adolph shouldn’t do it, but Oskar can’t say “No” because Adolph believes Adolph should do it. On pseudo-relativism, there doesn’t appear to be any coherent answer to Adolph’s question and thus no coherent fact of the matter as to what Adolph should do here. When it comes to moral obligations, pseudo-relativism is an incoherent mess. In contrast, both cultural relativism and ethical subjectivism handle the “moral obligation is relative to a given framework” notion in a coherent manner.

For the atheist, a better move than accepting pseudo-relativism would be to reject moral oughtness altogether, but then this would lead to moral nihilism (a view that denies the existence of moral properties like rightness and wrongness), since an action is morally wrong for subject S only if S ought not to do it. Indeed, moral nihilism is the best atheist position I can think of. Accepting moral nihilism allows the atheist to reject moral objectivism, avoid the incoherency of pseudo-relativism, and escape the absurdity of possible worlds where people are morally obligated to knowingly torture infants just for fun. Moral nihilists can still disapprove of things like torturing infants just for fun, but if moral nihilists are to be consistent, they would have to believe that their loathing for sadistically torturing infants is akin to me disliking sauerkraut in that it’s just a matter of personal taste and nothing’s really wrong with it. So although moral nihilism may be the best atheist position with respect to the moral argument, the intellectual price is high: the consistent moral nihilist would also have to believe that nothing at all is morally wrong, not even torturing infants just for fun!

Closing Thoughts

If a religion taught that there is nothing morally wrong with torturing infidels to death, we would rightfully label that religion as an irrational blind faith. If an atheistic worldview entails that there is nothing morally wrong with torturing theists to death, shouldn’t we conclude that this worldview is, if not irrational, at least probably false?

Still, many atheists are willing to bite the bullet and accept what I think atheism most reasonably implies: moral nihilism. For such atheists, their faith in atheism is greater than their conviction that something is morally wrong with torturing infants just for fun. If that’s what takes for me to embrace atheism, then I don’t have enough faith to be an atheist.

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Wednesday, March 21, 2012

Does Objective Morality Exist? (p. 2)

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Does Objective Morality Exist?
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The Evolution Objection

Another objection is that evolution somehow undercuts our moral intuition. Evolution is aimed more at advantageous behavior than true beliefs, and moral beliefs (that we ought to have limitations on killing and thievery for example) are advantageous for our species. When there’s a conflict between having true beliefs and having advantageous behavior, natural selection selects for advantageous behavior over having true beliefs. So, evolution gives us a reason to doubt our moral intuitions.

At least without further explanation, the appeal to evolution seems to be begging the question in favor of atheism. On theism, it’s likely that evolution was a process superintended by God that gave us at least somewhat reliable moral intuitions (e.g. about morality existing), in which case God used evolution to select for true beliefs, not just advantageous behavior. On atheism, I agree it is unlikely that evolution has given us reliable intuitions about morality existing (indeed, I think it’s likely on atheism that morality doesn’t exist at all) and that natural selection probably selected for advantageous behavior over true beliefs here, but then it’s clear that knowledge of evolution itself isn’t sufficient to serve as a defeater for the reliability of our moral intuitions. Theism + evolution = one’s intuition is probably right about morality existing; atheism + evolution = one’s intuition is probably wrong about morality existing. Evolution by itself isn’t enough to doubt moral objectivism.

One could finesse the appeal to evolution this way:

    (1)  If evolution is true, then we would come to have the same moral beliefs we do whether morality existed or not.
    (2)  If (1), then we aren’t justified (and thus we don’t know) that objective morality exists.
    (3)  Therefore, we aren’t justified (and thus we don’t know) that objective morality exists.


One way to at least partly justify premise (1) is to note that certain moral beliefs (e.g. moral prohibitions on stealing and killing) would benefit our species even if morality didn’t exist. Basically, the idea is that premise (1) undercuts our justification for our belief in objective morality. But there are several problems with this argument. First, it’s worth considering whether evolution really needs us to believe in objective morality. Even if evolution needs to drive us to behave in certain ways for our species to survive, it need not result in us accepting the existence of morality. If I were a moral nihilist (someone who believes nothing is morally wrong) I would still detest things like rape and genocide even if I no longer recognized such actions having a moral dimension to them. I would also strongly prefer not to do such actions, and this sort of attitude is not at all uncommon among those who would deny objective morality. Us having the right sort of strong preferences would be sufficient for us to behave in survival-conducive ways even without us accepting morality. This doesn’t by itself show that premise (1) or (2) is false, but it does show that our belief in morality isn’t a necessary consequence of evolution, and that should make us a bit more suspicious about the soundness of the argument. With that in mind, let’s address those premises.

Premise (1)

So given that we need not believe in morality for evolution to drive us to behave in the right ways, would we really come to have the same moral beliefs we do whether morality existed or not? As I mentioned in part 2 of the moral argument, that wouldn’t hold for the theist who believes God is both essentially good and the creator of the universe because if this theistic belief were true, then if morality didn’t exist neither would God (being morally good is an essential attribute of God, thus no morality means no God) and if God didn’t exist then he wouldn’t have created the universe, in which case (according to theism) none of us would be here to believe anything. So on theism if morality did not exist then we would not believe in morality.

What about atheism? On atheism, is it true that would we have the same moral beliefs if morality did not exist? Not necessarily. If I were an atheist moral objectivist, I would believe that we humans have a sort of supernatural clairvoyance that detects the existence of invisible, nonphysical moral properties like moral wrongness. That may sound far-fetched, but on atheism it’s difficult to find a more plausible relevant connection between these invisible, nonphysical, causally inert moral properties and our belief in them that would confer warrant upon those beliefs (for more on this sort of thing, see the warrant problem discussed in part 2 of the moral argument). An atheist who accepts that this is how we know moral properties exist can easily believe that if moral properties did not exist our clairvoyance wouldn’t have told us they existed and thus we would not believe they existed, similar to how we would no longer believe we had toes if we looked and saw that our toes were gone. And don’t forget, evolution can still drive us to behave in survival-conducive ways without our species accepting morality’s existence.

So it seems that all things considered, about the only way “If evolution is true, then we would come to have the same moral beliefs we do whether morality existed or not” would be convincing is if one already believed that we do not have knowledge of objective morality. But if the only reason one has for believing “If evolution is true, then we would come to have the same moral beliefs we do whether morality existed or not” is that one already believes we don’t know that objective morality exists, then this evolution objection is a pretty lousy argument for the claim of us not knowing that objective morality exists.

Premise (2)

The argument’s failure with premise (1) is enough to reject this argument, but the truth of premise (2) is also worth considering. Would us having the beliefs we do whether morality existed or not destroy our justification for it? If so, why? Perhaps the general idea is if that if we would believe some proposition p even if p were false, then we are not justified in believing p. But this doesn’t always hold especially for properly basic beliefs (beliefs we are justified in believing even if they are not believed on the evidential basis of other beliefs; e.g. belief in the reality of the external world as opposed to our perception of it being merely a lifelong dream). For example, “It is not the case that I am a brain in a vat of chemicals hooked up to electrodes with a supercomputer generating all the sensations and intuitions I have had my entire life” is a sort of belief that even if it were false, we would still believe it is false. Yet we are still rational in believing that the external world is real and not a computer-generated illusion. Belief in objective morality is properly basic, and we have no more reason to doubt it than we do to doubt the reality of the external world. (Though as discussed in part 2 of the moral argument, on naturalism nobody has any warrant for objective morality, and so arguably on naturalism one’s belief in objective morality is not properly basic.)

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