But of those who are not, such as are defective in body they will suffer to die and those who are evil-natured and incurable in soul they will themselves put to death.” “This certainly,” he said, “has been shown to be the best thing for the sufferers themselves and for the state.”--Plato, Republic 410a.
That in this state of society, therefore, a parent should be allowed to judge whether he can bring up his child, ought not to surprise us so greatly. In the latter ages of Greece, however, the same thing was permitted from views of remote interest or conveniency, which could by no means excuse it. Uninterrupted custom had by this time so thoroughly authorised the practice, that not only the loose maxims of the world tolerated this barbarous prerogative, but even the doctrine of philosophers, which ought to have been more just and accurate, was led away by the established custom, and upon this, as upon many other occasions, instead of censuring, supported the horrible abuse, by farfetched considerations of public utility... The humane Plato is of the same opinion, and, with all that love of mankind which seems to animate all his writings, no where marks this practice with disapprobation.--Adam Smith, The Theory of Moral Sentiments.
Smith's criticism of Plato's (and also Aristotle's) support of infanticide is in the service of two philosophical points: (a) that tradition and custom can pervert not just ordinary public morality, but even the morality of the (otherwise reliable) moral experts; (b) Consequentialist arguments in defense of some practice (norm, institution) can easily be abused. This is, especially, striking because (i) Smith too tends to defend consequentialist (but not utilitarian) arguments of institutions (although he notes that these consequences cannot be used to explain their origin). Moreover, while Smith is no Burkean or Humean Conservative, he, too, is happy to have some "checks the spirit of innovation" that are traced to existing norms. And (ii) it gets the spirit of Socrates's program all wrong (as I explain below).
One can understand Smith general program in political economy as a project that is meant to combat famine, in general, and, in particular, the accompanying practice of infanticide. Smith announces this in the introduction on the opening page to the Wealth of Nations where he singles out the "miserably poor," nations, where "from mere want, they are frequently reduced, or, at least, think themselves reduced, to the necessity sometimes of directly destroying, and sometimes of abandoning their infants, their old people, and those afflicted with lingering diseases, to perish with hunger, or to be devoured by wild beasts."
Smith does not pause to note explicitly that Socrates encourages infanticide in the context of a broader program of eugenics (see also 461c). Smith's reticence is notable because the interest in the topic was not merely academic; in the (1735) Querist Berkeley had offered, with a nod to Plato (Laws) a positive eugenicist racial breeding program in his political economy (recall). Berkeley had proposed it in order to tackle (in the context of extensive institutional reform and education projects) to tackle structural, Irish poverty (including famines). In the Querist Berkeley regularly appeals to variants of public utility (or usefulness).
By contrast, the inner motive of infanticide in Socrates's luxurious city is not really the battle against famine and poverty, but the breeding of better people by killing off defective bodies. Of course, the primary program of human enhancement in the city is cultivation, drilling, education, and propaganda toward virtue, but this is worked on the most capable human bodies; such that virtue is a kind of health (444d). In this program, Socrates is more than happy to go against tradition. So, Smith, who certainly knew his Plato, seems to miss the point.
Now, recall the following three options about human nature:
- Differentiated human nature; the differences also reflect axiological hierarchy. This seems to be Aristotle's position (say on natural slavery) in Book 1 of The Politics.
- Differentiated human nature, but without (axiological) hierarchy among the differences. This seems to be Socrates's position in the true city (or 'city of pigs') of Book 2 of the Republic. [Recall.]
- Analytic Egalitarianism (AE): homogeneous human nature such that we're equal for theoretical (including moral) purposes. Observed differences are due to cultural, educational, institutional factors.
- Differentiated human nature; the differences also reflect axiological hierarchy. This seems to be Aristotle's position (say on natural slavery) in Book 1 of The Politics, and is revived regularly by modern Eugenicists and has a new instantiation by contemporary (smart/dumb obsessed) epistemocrats (e.g. Jason Brennan).
- Differentiated human nature, but without (axiological) hierarchy among the differences. This seems to be Socrates's position in the true city (or 'city of pigs') of Book 2 of the Republic. [Recall.]
- Analytic Egalitarianism (AE): homogeneous human nature such that we're equal for theoretical (including moral) purposes. Observed differences are due to cultural, educational, institutional factors.*
In the luxurious city (372e-451b), Socrates comes much closer to option 1 -- this is reflected in the hierarchical metaphor of folk with, silver, bronze natures (415e), but without going so far as Aristotle as claiming that there are natural slaves (recall). The hierarchical differentiation of human nature is, in turn, explained by Socrates, in part, by the ways in which the three (hierarchical) elements of a given soul are distributed within individuals in a population with only a small minority belonging to the top of the hierarchy. Socrates's and Aristotle's positions doe not exhaust the options, of course; De Gournay, for example, also allows for hierarchical (and axiological) differentiation, but insists that the distribution of talents is fairly homogeneous (recall).
Strikingly, while, Socrates defends the superiority of men to women, he insists that the pattern of differentiation among men and women is broadly similar such that the most superior women have broadly similar natures as men do (456a) and are superior to average men (455de). (Again, that's obviously not the only option: Van Schurman denies that the pattern is broadly similar, and implies that while women are inferior along many dimensions some women are superior along others.) As is well known, the idea is then to ensure assortative mating, especially at the top of the hierarchy among men and women (458d);* and to use various means of birth control to prevent the bottom of the hierarchy to mate (459de). In addition, among the system of rewards and honor for the guardians in the luxurious city (recall), the right to copulate is a key reward in their incentive structure (460b). That is, Socrates's eugenics program does not merely try to control the characteristics of the population, but also their number (in light of wars, illness, etc). [I am skipping over the role of chance in generating the best natures, but will return to it when I discuss Socrates's analysis of the failure of such eugenics program.]
But there is one more wrinkle in Socrates's population theory. Even when breeding works according to plan (and, as we'll discuss soon, there are epistemic limits to this), the very best natures produced by it can also become the most corrupted (491e). In fact, it follows from Socrates's argument that the more successful the breeding program is the more dangers are generated by it.
To return to Smith; if we take his passage in TMS against the humane Plato seriously, it entails that Plato would not have condoned the infanticide features of his eugenics program if he had reflected on the fact that he was relying on cultural biases. This is, of course, a narrow criticism and leaves quite a bit of it untouched. Of course, Smith has many other arguments against the use of force and deception in the service of any project of breeding of the best within a society with specialized division of labor, but one of the most celebrated two sentences from Wealth of Nations tackle it head-on:
The difference between the most dissimilar characters, between a philosopher and a common street porter, for example, seems to arise not so much from nature as from habit, custom, and education. When they came into the world, and for the first six or eight years of their existence, they were, perhaps, very much alike, and neither their parents nor playfellows could perceive any remarkable difference.--Wealth of Nations.
The first quoted sentence suggests to many readers that Smith is an analytical egalitarian. I have some doubts about this (see also), the sentence itself allows some natural differences (and there are some other passages in Smith that also recognize morally salient natural differences). But I do agree that the passage is directed, in part, against a Socratic position. For, the second sentence insists that even if there there is natural differentiation withing a given population, we have no epistemic resources to pick out the excellent natures among young-ish children. This means that the program of cultivation and drilling (etc.) cannot target those natures destined for greatness until after a critical period.+
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