Tag: hume

Hume, Plato, and the Impotence of Reason

Hume infers from his insight that it is not reason but moral opinion that moves us to act, that reason is not the source of moral opinion. From this, he then further argues that moral opinion is a product of the passions – special emotions that arise out of the relations of ideas and impressions. In this essay, I will argue that Hume’s initial inference is correct, but that his subsequent inference is not. Passions may indeed arise from relations of ideas and impressions, but there is no good reason to presume passions, though necessary, are sufficient to produce a moral opinion.

So, what exactly is a “moral opinion”? Plato believed that opinion (doxa) was something that lay in the gray area between true and false belief. He argued that opinion did not deserve the respect of a truth because it lacked the justification of an eternal, unchanging quality necessary to rise to the level of êpistêmê (true belief). If we apply this standard to moral opinion, then, it would be a doxastic belief about the rightness or wrongness of an action, or the goodness or badness of a character. Moral knowledge, on the other hand, would be a belief of a much stronger type. To say, for example, that I believe stealing to be unpleasant, or that I wouldn’t do it, or that it seems wrong, would be to say something contingently true, relative to myself, and subject to correction. To say, “stealing is wrong”, on the other hand, is to make a truth claim asserting the real existence of a property in a certain class of actions. To make such an assertion, I would need to be able to identify the property, point it out, and name it. That would require some sort of perception, and perception requires a sense organ or a faculty of the mind, or both. Plato would rule out a sense organ as the source of our moral knowledge, because sensible phenomena are mere imperfect reflections of the ultimate reality of the form of the good.

The faculty of the mind that perceives such things as rightness or wrongness, according to Plato, is therefore a certain kind of judging faculty that need not rely on the senses. The traditional interpretation is to say that this is reason, and to make analogies to mathematics to bolster the claim because this is what Plato seems to do, but I disagree. In The Republic, Plato provides an ornate metaphor for his tripartite soul: that of a charioteer and two great horses. Plato puts reason in the charioteer’s seat, and assigns the role of appetite (passions) and judgment (moral judgment) to each of the two horses. This arrangement is important, because it speaks to Hume’s own assertion that “reason is and only ever ought to be the slave of the passions”. The charioteer is the apprehending ego, the “reasoning” member of the triad. He does not motivate the chariot. He only steers it. This is consonant with Hume’s view, that reason can only guide the passions, but where Hume fails is (to borrow Plato’s analogy), in thinking there is only one horse. Hume is presuming there is no judging faculty. With only one horse to pull the chariot, the best the driver can do is provide a bit of helpful guidance as the appetitive horse causes the chariot to careen in whatever direction its whim pulls it.

Jonathan Haidt, in his 2012 book The Righteous Mind, provides a more vivid metaphor: that of a thin, scantily clad tribesman mounted atop an unruly African elephant. In this metaphor, the elephant is almost entirely in control, and all the rider can do is suggest minor alterations in direction with a swat of reeds or a tug on a rope. His metaphor, like Hume, includes no faculty of judgment, no capacity to discern the difference between mathematical or empirical facts, and the normative consequences of actions taken in light of them. No capacity for selecting among possible goals. For Haidt, the elephant dictates the terms of engagement to the rider, and his only choice is over how enthusiastically he accepts them. Haidt is dutiful in his acceptance of Hume’s model of moral psychology. But Hume, as I have said, is wrong. Hume is indeed correct that the rider does not form his opinions on his own, but he is wrong to say that they necessarily derive from the elephant. Hume is ignoring the judging horse. Kant, reacting to his own observation of this problem, attempts to right the ship by overcorrecting in the opposite direction: he denies the importance of the appetitive horse, and gives control of the chariot exclusively to the driver. On Kant’s model, neither appetite nor judgment are empowered to lead us anywhere, and the charioteer is forced to get out and push the chariot, out of “respect for the moral law”. This will not do.

To properly form a “moral opinion”, as anything more than just opinion, requires judgment. Judgment is the reconciliation of “is” with “ought”, by means of a value determination. That determination requires a negotiation of experienced desires and reasoned principles. In this way, the rider and his two chariot horses have an equal say in the speed, direction, and ultimate destination of the chariot. For all it’s metaphorical mysticism, Plato’s model of the tripartite soul is a profound insight into human character that is lacking in almost all of his successors, save perhaps, Aristotle. The rational portion of the soul is the master of what is, the appetitive portion is the master of what I want to be, and the judging portion of the soul is the master of what ought to be. Our task, as thinking, self-conscious human beings, is to train ourselves so that these masters learn to live in harmony with one another. When we do, the result is eudaemonia.

Book Review: The Righteous Mind, Jonathan Haidt

Is it better to be truly just, or merely to seem so? This is the question put to Socrates by Glaucon in The Republic. Jonathan Haidt, in his book, “The Righteous Mind”, counts Glaucon among the cynics for putting this challenge to Socrates. But Haidt is missing a subtle and very powerful nuance in Plato’s story. Socrates had just finished embarrassing Thrasymachus for his weak defense of cynical egoism. Glaucon and Adeimantus were certainly entertained, but they were not satisfied with Socrates. They sought much stronger reasons for accepting the conclusion that true justice is preferable to appearance, because they did not want to merely seem to agree with Socrates. They really wanted to believe that genuine justice was better, and giving Socrates the strongest possible objection that could be mustered is the only way an honest man (if he is honest with himself) can do this.

Socrates’ initial response to Glaucon was not the description of the ideal state that the story has become famous for. Rather, it was a likening of the soul to the body. Repeated abuses and illnesses corrupt and degrade the health of the body over time, until at some point it is no longer possible to experience vigor and vitality. Likewise, says Socrates, repeated vices and injustices committed in pursuit of wealth or power or honor will eventually render the soul so degraded and corrupt that it will no longer be capable of achieving eudaemonia (aka ‘contentment’, ‘happiness’, or ‘flourishing’). This is the fate of the man who pursues a life of politics, without first tending to his soul.

Haidt seems almost proud of his “Glauconian cynicism” – a socio-biological view in which he believes he can show that, regardless of which is better, seeming just is what we humans actually seek. Haidt claims explicitly and confidently not to be offering an argument for what ought to be, only what is. But the enthusiasm with which he reports this supposed scientific fact suggests that he also thinks that what is, just is what ought to be. But this is precisely the challenge posed to Socrates by Glaucon: it certainly is true that many people (perhaps even most) are cynical and self-serving. So, why oughtn’t they be? Haidt’s response to this recurring implicit question seems to be to just keep reasserting the fact, in ever more sophisticated and complex ways.

Near the end of the book, in spite of already offering an explicit refusal to address the problem of normative ethics, Haidt tosses off a flippant endorsement of Utilitarianism as if this view has already settled the normative question, or simply to signal to the reader that the question just isn’t interesting enough to bother investigating. But this has profound implications for how seriously one can take some of the claims he makes in this book. The tension between what is and what ought to be plagues this book, and any reader eager for insight into the gap between descriptive and normative ethics will find it profoundly frustrating.

The Basic Theory, and It’s Problems

Haidt’s basic theory of the “Righteous Mind” comes down to two hypotheses. First, that the human brain has evolved for both “tribal” and “hive” social structures. To put it in his terms, “we are 90% chimp, and 10% bee”, and a special “hive switch” in the brain is flipped, when conditions are ideal, that suppress our self-interested “groups” psychology, and make us more altruistically “hive-ish”. It’s not quite clear what sort of mechanism this “switch” is, what causes it to flip, and how it gets reset. But he offers a lot of anecdotes from his research that describe evidence suggesting its presence.

The second, and much more complex portion of the theory, is his six-dimensional model of moral psychology. His system is powerfully reminiscent of David Hume’s own four-pole system of moral emotions (Pride-vs-Humility / Love-vs-Hate). But there is one extremely significant difference. Hume’s theory was one meant to describe morality as a system of “passions” (special kinds of emotions). These passions derive from a natural propensity for pleasure, and a natural aversion to pain (he presages the Utilitarians in this respect). What’s more, moral judgments are not reasoned, but felt. Morality, for Hume, just is emotions expressed. Haidt’s theory, on the other hand, describes six dimensions of values, not emotions: Care, Fairness, Loyalty, Authority, Sanctity, and Liberty. Haidt says that all human beings have this six-dimensional system built-in as a consequence of thousands of years of socio-biological evolution. He argues that the “sensitivity level” at which each of these is not permanently fixed, but is set to “defaults” at birth, and adjusted over a lifespan by experience. How, precisely, this happens and by what mechanism, is a bit murky, but again, he offers loads of anecdotal examples (and data from his studies) to show how each of these dimensions is expressed by individuals.

A few questions and objections arose for me, about these two hypotheses, as I read through the book, that never seemed to get a satisfactory answer. First, on the six aspects: are they like adjuster knobs on a sound board? Or, are they merely barometer needles reporting varying pressure levels set by environmental impacts on a biological system? If the former, then surely there are “optimal” positions for each of these knobs (even if only circumstantially optimal)? In that case, then there is indeed an opening for a normative ethical theory, describing these optimums. However, if the latter is true, then it is hard to understand how there could be any such thing as an “ought” at all, much less a system prescribing them. Haidt is constantly nudging up to the edge of this Humean is-ought cliff, and retreating from it just when things start to get interesting.

Second, Haidt never quite explicitly acknowledges that he’s describing a system of values, rather than a moral psychology. One might object that a system of values could be said to be a variety of moral psychology, but I would reply that by the time we get to values, we’re already one layer above fundamental psychology. Why these six, and not others? Indeed, in the book, Haidt explicitly acknowledges that some early reviewers of the book objected to the lack of “equality” as a value on his list of “aspects”. If “liberty” counts as a foundational psychological value, then why not “equality”? It has just as long a history, after all. More importantly, to talk of values at all, you’re once again in flirting in the realm of the normative. I would have to look more closely at the research he used to back this section of the book, but how do we know he didn’t just happen to find the set of six values that he and his team were particularly focused on already? That is a normative selection process: “these values are more important than those”.

Third, returning to the “hive switch”, Haidt emphasizes the “dangers” of too much hive-ishness or too much groupishness. But he never quite explains how there could be any such thing as a “right amount” of either, in the absence of a normative theory. Without any idea of what an ideal amount of either would look like, why would the horror of the Hobbesian anarchy or Stalinist oppression even count as “bad”? Lower primates seem perfectly satisfied with brutal inter-tribal conflict, and ants are obliviously willing to destroy themselves en masse for the sake of colony and queen. What’s worse, is that there’s no clear explanation for how the “hive switch” and the six-dimensional moral psychology fit together. Do certain knob settings produce hives instead of tribes? Do others produce tribes instead of hives? What are the right tension levels between the two modes? If the knob settings do influence this, how do we know what those should be? None of this is discussed in the book, except in passionate warnings to beware of extremes. A laudable sentiment, but so what?

Lastly, while Frans de Waal is largely an asset to Haidt’s book, there is one key notion from de Waal that highlights the primary problem with Haidt’s “Glauconian moral matrix”; de Waal captured it in a rather pithy phrase: Veneer Theory. In his book, “Primates and Philosophers”, de Waal uses the phrase to criticize Huxley and Dawkins for uncritically accepting a view of human nature that is Hobbesian without providing an explanation for how a self-serving egoist gets to altruism all on his own. Haidt’s book suffers from a similar problem. Though he does a great job of bridging the gap between egoist and “group-altruist”, what he fails to do is explain how the “Glauconian cynic” becomes a genuinely caring being. Haidt has concocted his own variety of Veneer Theory by redefining it as a complex inter-subjective social delusion that we all agree to participate in. He takes this as an answer to the problem of a “veneer” layer. But it only makes his own set of theories seem like a Rube Goldberg machine. Haidt makes a strong case for the biological and psychological reality of moral experience as a genuine phenomenon. But this works directly against the idea that we merely wish to appear to care, or to be virtuous. Why layer a “moral matrix” on top of a perfectly reasonable explanation of genuine moral emotions? More to the point, why would evolution tolerate such an expensive and convoluted cognitive load, such as layers of delusion, on top of the already demanding task of navigating the social world in real time? Even more curiously, why would we count the primitive primate morality of chimps and bonobos as “actual” or “genuine”, while regarding our own as a mere matrix-like delusion?

Final Thoughts

Anyone who has read the entirety of The Republic has to come to terms with a powerful dissonance in Plato’s tale. Either Socrates truly misunderstood human nature (perhaps he confused it with his own psychological projections), or he didn’t actually believe what he was saying. Some philosophers argue for the latter theory: that the ideal state was ideal intentionally. Socrates was never going to convince the Athenians to drive all the old folks out of the city in order to start afresh, or convince the educated classes to surrender their private property holdings to the commons, or convince them to put their women and children into a breeding commune to be tended by specially bred and trained guardians. He must have known that. What was really going on here? Remember that the tale was written by Plato, long after Socrates’ execution. Plato was engaging in his own bit of cynical rhetoric, grounded in bitterness. He wanted to demonstrate the utter impossibility of the larger task: convincing men to love virtue for its own sake; to be just, rather than simply to appear just. He had given up on the possibility, and the Republic was his way of showing this. It is hard to blame him, on one level. He’d watched these people destroy his master and teacher; a man for whom Plato had given up a promising life as a poet, in order to follow him in philosophy. Haidt, on the other hand, embraces his cynicism with zeal, because he believes the data tells him he must, and he refuses to even entertain the possibility that we might just be better than that. In effect, he takes Plato’s implicit condemnation of man and turns it into a simple matter-of-fact. But recasting the condemnation as mere description doesn’t change the moral reality; it just hides it behind a veil of cynicism.

Reason Versus the Passions – Initial thoughts on Hume’s Treatise

…When in exerting any passion in action, we chuse means insufficient for the designed end, and deceive ourselves in our judgment of causes and effects. Where a passion is neither founded on false suppositions, nor chuses means insufficient for the end, the understanding can neither justify nor condemn it. It is not contrary to reason to prefer the destruction of the whole world to the scratching of my finger. It is not contrary to reason for me to chuse my total ruin, to prevent the least uneasiness of an Indian or person wholly unknown to me. It is as little contrary to reason to prefer even my own acknowledged lesser good to my greater, and have a more ardent affection for the former than the latter. A trivial good may, from certain circumstances, produce a desire superior to what arises from the greatest and most valuable enjoyment; nor is there any thing more extraordinary in this, than in mechanics to see one pound weight raise up a hundred by the advantage of its situation.In short, a passion must be accompanyed with some false judgment in order to its being unreasonable; and even then it is not the passion, properly speaking, which is unreasonable, but the judgment.

The consequences are evident. Since a passion can never, in any sense, be called unreasonable, [except] when founded on a false supposition or when it chuses means insufficient for the designed end, it is impossible, that reason and passion can ever oppose each other, or dispute for the government of the will and actions. The moment we perceive the falsehood of any supposition, or the insufficiency of any means our passions yield to our reason without any opposition. I may desire any fruit as of an excellent relish; but whenever you convince me of my mistake, my longing ceases. I may will the performance of certain actions as means of obtaining any desired good; but as my willing of these actions is only secondary, and founded on the supposition, that they are causes of the proposed effect; as soon as I discover the falsehood of that supposition, they must become indifferent to me…. [Book II, Part ii, Section iii]

Hume, David. A Treatise of Human Nature: Bestsellers and famous Books (pp. 388-389). anboco. Kindle Edition.

According to Hume, reason is but a slave to the passions. We are moved to act by a process of primary impressions (e.g., pleasure and pain, or grief and joy, or attraction and aversion), giving rise to relations of ideas (memories and reflections), which then give rise to secondary impressions (pride and shame, or love and hate, etc).

Hume was probably hyperbolizing for the sake of highlighting the point (later on in life Hume apparently lamented stating it so forcefully). But the point was not simply that passions are neither ‘reasonable’ nor ‘unreasonable’, it was primarily that reason is inert; That no calculation of circumstances or train of logic is capable of moving a man, all on its own. He reasoned that there must be some process by which ‘relations of impressions and ideas’ are converted into passions (the things that actually provide us with the impulse to act). Hume often depicts reason as lying somewhere between initial impressions, and final passions, acting merely as a conduit or proximal cause (though I suppose he would have balked at the word ’cause’ here).

His explication of that process and how it works is woefully naive and speculative (in addition to being incorrect in most respects). However, I think he was on the right track, and simply lacked a sophisticated enough science of human biology and psychology to render his theory into something that made better sense to a modern mind. For the most part, in the 18th century, the only tool available to him was introspection and a smattering of knowledge of human and animal anatomy. So, frankly, not only should he be excused, he ought to be lauded as a genius for (nearly) single-handedly inventing the science of psychology and the philosophical notion of moral psychology.

Still, I find myself disagreeing with Hume for the following reasons:

First, “reason” and “passion” are not separate ‘faculties’ of the mind, placed into a hierarchy with each other. Even Hume seemed to understand this (at least in part). They are functional capacities that express themselves in varying degrees in concert, under various circumstances. Reason is no more the slave of the passions, than the strings and woodwinds are the ‘slaves’ of the french horns and trumpets in an orchestra.

Second, Later on in the Treatise, he’ll introduce yet a third relation: that of moral judgment. At which point, all he’s really doing is describing Plato’s tripartite soul, in a much more complex way (Plato, of course, placed reason in the charioteer’s seat). Why philosophers traditionally have insisted on conceptions of consciousness as simple hierarchies is something I don’t quite understand, but in truth, the mind is more like an evolving ecosystem, not a top-down political structure.

Third, Hume reifies the phenomena in his model. He says that passions are derived from relations of impressions and ideas. He also says that the “self” is itself nothing more than an idea that arises from a relation of other impressions and ideas. But, he then says that pride and shame are passions, and that pride and shame have as “their object”, the self. And, for this to happen, there must be a “we” (i.e. the “self”) that receives an impression of something beautiful that “we” own. But this is to assign intentionality to mere phenomena. Hume never explains how this is possible. You can’t on the one hand, say that all the phenomena of the brain are merely the effects of causal inter-relations between impressions and ideas, and then on the other, somehow make the impressions and ideas capable of choosing objects at which to direct themselves.

The consequence of this, is that the most Hume could have reasonably said, was that he didn’t really know whether passions ‘ruled’ or reason ‘ruled’. At most, our cognitive and emotional capacities are cohabitants, and if you look at the modern scientific literature (admittedly, I am but a layman), there is little in the brain itself to distinguish them apart. Some would say the difference between the limbic system and the frontal lobes is enough to show this, but despite being separate physical structures, the actual neural activity isn’t so distinct. The limbic system, for example, in addition to being responsible for most of our emotions, is also responsible for several functions related to memory(something Hume would have counted as part of his ‘relations of ideas’ rather than as a sensation). The point is, rather than being master and slave to each other, they’re more like ‘dance partners’.

In fact, it seems to me, the core question here is exactly what role do each of the cognitive and emotive capacities of the brain play, in decision-making? Unfortunately, I’m no psychologist, and only have a layman’s familiarity with a smattering of the scientific literature on the question (which might help answer the question). But, I suppose one criticism you could levy at Hume, is that his overall theory (as its proposed here) is unfalsifiable: no matter what you decide, it’s always evidence of the passions at work. But then, it’s not like Hume had access to a rigorous methodology.