In value theory, or axiology, there are two kinds of theory: monistic and pluralistic. Monistic theories posit one kind of intrinsic value, whereas pluralistic theories posit more than one. Hedonism is a monistic theory of value which posits pleasure as the single kind of intrinsic value.
There are two interesting ways of arguing for hedonism that I want to explore. First, there is the argument from moral disagreement. The second one is the evolutionary debunking argument. Both strategies trade on an alleged fact about pleasure, which makes them variants on a more general kind of argumentative strategy. The alleged fact that both trade on is that we are directly acquainted with pleasurable mental states. Pleasure, on this view, is a property of mental states (I won’t go into what sort of property here). Since we are directly acquainted with at least the phenomenal qualities of our occurrent mental states, and pleasure is a phenomenal quality of mental states, we are directly acquainted with pleasure.
Direct acquaintance can be spelled out in various ways, but for now let’s just take it as a factive relation between a subject and some property. The relation is factive because the property must actually exist and be accessible to the subject for that property to be a member of an acquaintance relation. You can’t be acquainted with something that doesn’t exist. Similarly, you can’t know something that isn’t true. To be directly acquainted with some property is to have a special epistemic perspective on that property. For example, being in pain is an acquaintance relation because subjects are in pain, and a particular subject’s pain is had by that subject, which means that no other subject can have that same pain. The subject in pain has a privileged epistemic perspective with respect to her pain. She is directly acquainted with her pain, which means she does not need to make an inference to know that she is in pain, having it is sufficient. Others cannot have this privileged perspective on her pains, but rather they must infer that she is in pain from her behavior.
Before unpacking the first argument for hedonism, we need to consider the argument from moral disagreement:
- In any moral disagreement, at least one party must be in error.
- There is widespread moral disagreement.
- If there is widespread error about a topic, we should retain only those beliefs about it formed through reliable processes.
- If there is widespread error about morality, there are no reliable processes for forming moral beliefs.
- There is widespread error about morality (from 1 and 2).
- We should retain only those moral beliefs formed through reliable processes (from 3 and 5).
- There are no reliable processes for forming moral beliefs (from 4 and 5).
- We should give up all of our moral beliefs (from 6 and 7).
The hedonist responds to this argument by denying 4. There is a reliable process of forming moral beliefs, which is the process of phenomenal introspection. Engaging in phenomenal introspection reveals that we are directly acquainted with certain phenomenal properties, such as pleasure. Since we are directly acquainted with pleasure, we can see that pleasure is good. According to Neil Sinhababu, “Just as one can look inward at one’s experience of lemon yellow and appreciate its brightness, one can look inward at one’s experience of pleasure and appreciate its goodness.” There is a link between the goodness of pleasure and badness of pain, and the reasons why we morally praise and blame people. When somebody tortures an innocent person, a main reason we consider the torturer bad is because we know that pain is bad, and inflicting it for no reason is also bad. We morally blame the torture for inflicting gratuitous pain, which means that there is moral disvalue in pain (and ipso facto, moral value in pleasure). So, hedonism about moral value is true.
The second argument goes like this. Our moral judgment and belief formation processes evolved under conditions which did not select for their reliability. We should not believe things produced by unreliable processes. So, we should suspend our moral beliefs and refrain from moral judgments. However, we are directly acquainted with pain and pleasure, and by virtue of that acquaintance we know that pain is intrinsically bad and pleasure is intrinsically good. The origins of those beliefs do not undermine their reliability. So, pain is intrinsically bad and pleasure is intrinsically good. Assuming no other kind of moral belief can be saved from debunking this way, it follows that we should be hedonists.
Peter Singer and Katarzyna De Lazari-Radek provide a thought experiment to back up the argument:
“Thalia Wheatley and Jonathan Haidt hypnotized subjects to feel disgust when they read an arbitrarily chosen word – in this case, the word ‘often’. The students then read the following,
‘Dan is a student council representative at his school. This semester he is in charge of scheduling discussions about academic issues. He often picks topics that appeal to both professors and students in order to stimulate discussion.’
Students who had been primed under hypnosis to feel disgust at the word ‘often’ were then asked to judge whether Dan had done something wrong. A third of them said that he had. The negative moral judgment was, of course, an illusion, created by hypnosis, and it gives us no reason at all to believe that Dan’s conduct was wrong. Presumably once the experiment was over, and the students had been debriefed, they would agree that Dan had done nothing wrong. Now suppose that the students had been hypnotized to believe that when they read the word ‘often’ they would develop a blinding headache. Soon after being given information containing the headache triggering word, they held their heads, moaned, asked for analgesics, and tried to find somewhere quiet to rest. Asked to rate how they are now feeling on a scale rating from ‘very bad’ to ‘very good’, they rated the experience as ‘very bad’. After the experience was over and they had been debriefed, would they change their judgment that they had a very bad experience because the judgment was induced by hypnosis? Presumably not.”
The point is that they were directly acquainted with the bad experience (headache pain), and regardless of the origins of the judgments made about the badness of their experiences, they were justified in believing that their experiences were very bad. Direct acquaintance is still doing the heavy lifting here, because it is by virtue of it that the students are still justified in maintaining that their judgments were reliable. In the first experiment, the students were not directly acquainted with the alleged badness of Dan’s actions, so there was nothing there to defeat the genetic defeater of their judgments (that being that they were formed by hypnosis). In the case of pain, direct acquaintance becomes a defeater-defeater, which means that it undermines the unreliable origins of judgments formed on its basis. Presumably, we can run a similar thought experiment about pleasurable experiences as well. So, the goodness of pleasure and the badness of pain are not undermined by evolutionary considerations, whereas other evaluative judgments are. So, hedonism is true.
Both of these arguments are interesting in their own right. But what I find most interesting is that they rely on direct acquaintance as a means of arguing for hedonism. It seems like arguments for hedonism will typically take this form: Judgments about the value of things with which we are not acquainted are subject to epistemically unacceptable doubt. Judgments about the value of things with which we are acquainted are not subject to epistemically unacceptable doubt. Judgments that are subject to unacceptable doubt are not justified. Hedonistic judgments are judgments about the value of things with which we are acquainted. So, hedonistic judgments are justified. The way I would suggest challenging this kind of argument is by questioning whether direct acquaintance is the only way to mitigate skeptical doubt. Perhaps intuitions could do the job as well, which would open up the possibility of intuitionist ethics (which tends not to be hedonistic).
 Sameness being numerical identity in this case.
 Cf. Sinhababu, The Epistemic Argument for Hedonism.
 (Singer and Lazari-Radek 267-268).
 Presumably, the hedonist’s definition of ‘pleasure’ will cover other phenomenal states, like aesthetic appreciation, otherwise there could be other phenomenal states that seem to have intrinsic value that are not hedonic.
Lazari-Radek, Katarzyna De., and Peter Singer. The point of view of the universe: Sidgwick and contemporary ethics. Oxford: Oxford U Press, 2014. Print.
Sinhababu, Neil, The Epistemic Argument for Hedonism.