Where the good, the true, the human, and the real meet

In the second of his series on virtue, Andrew Davison explores the underrated virtue of prudence as the ability to live aligned with the grain of the universe.

Andrew Davison

Andrew works at the intersection of theology, science and philosophy. He is Canon and Regius Professor of Divinity at Christ Church, Oxford.

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Photo: Dominik Scythe on Unsplash.

A full human life is a virtuous one, and vice versa. In the second of these eight discussions of virtue, starting in Lent and moving into Easter, we come to the first of the virtues, namely prudence. It’s not a common word today, but you simply can’t have virtue without it, at least according to such luminaries as Aristotle and Thomas Aquinas. Prudence, Aquinas recalls, is:

‘the mother, custodian, and moderator of the virtues.’

That’s because, for him, prudence is nothing less than the meeting point between the good, the true, the human, and the real.

'That to act well – to be virtuous – is to act rationally.'

Thomas Aquinas

Virtue, as we saw last time, is all about being fully and characterfully human. Human beings are ‘rational animals’, as Aristotle put it, so to be fully and characterfully oneself, someone has to act rationally, to the fullest extent that she is able. (This is also a tradition that has fiercely upheld the humanity and worth of people with disabilities, including mental disabilities.) There is something deeply counter-cultural about placing that sort of emphasis on reason. Isn’t fulfilment about following our desires, with rational interrogation just getting in the way? Moreover, we’ve lived through decades in universities where reason has been treated with suspicion (that’s the technical term), as ultimately an expression of power or some vested interest, such that ‘truth’ more about the speaker than what is spoken about. In contrast to that, Aquinas insists that to act well – to be virtuous – is to act rationally.

‘Reason is an openness to the reality of things’

Thomas Aquinas

That, however, is no cult of abstract or rarefied reason, nor the preserve of some intellectual elite. For one thing, while reason is important, it’s also secondary. Reason matters because of reality. To be virtuous is to live with the grain of how things are: with the grain of being human, of being in a human community, and with the grain of the universe more generally. The place of reason in virtue, according to Aquinas is not so much for its own sake, but because reason is an openness to the reality of things. Second, the rationality of prudence is a matter of keen-sightedness, especially in keeping two things in view, and coordinating between them: moral principles, and the contingencies of the situation to hand. Such clarity of vision is by no means limited to the highly educated, nor is primarily to be learned from books. It is picked up from good examples, and a well-honed common culture. Third, prudence is a virtue – a ‘second nature’, as we saw in the previous article – and that is as much about the honing of instinct, as anything else. It ends up as much a matter of the body as of the soul. It is about being a rational animal, so it shapes us as animals, and not only as minds.

To be virtuous is to be prudent – to be practically wise and rational – because of the need to attend to reality, and work with its grain, not against it. A good life is lived in a way that’s in-keeping with human nature, and with nature more widely, so as to flourish within it. That’s not simply a matter of living sensibly, although that’s also not a bad start, since living sensibly is also harder than we might think. We don’t naturally always make healthy use of the good things of life – food, sleep, sexual intimacy, responsibility, or authority – as good sense would suggest.

On fraught territory

The association of prudence with the reality of things, especially with the shape of human nature, is fraught territory. Human beings are prone to read all sorts of morally charged things into nature, some of them deeply flawed. Even the great Aristotle thought that some human races were ‘obviously’ and ‘naturally’ slaves. He also bequeathed the idea that human nature at its most authentic is male, such that women turn up when a foetus doesn’t develop along those, better, lines. All of that once seemed natural, which is a problem, but it doesn’t invalidate the place of prudence among the virtues, and the place of reason in a well-lived life. It makes careful use of prudence and reason all the more important.

On the good life

Reflecting on what a healthy, flourishing human nature is like, and a healthy, flourishing society, is a tricky business. That’s why it calls for life-long growth in the virtue of prudence: getting better at knowing what that looks like, knowing it more and more instinctually, and in being able to weigh up what it demands in any particular situation, rapidly in some cases. We won’t all agree on what a flourishing life looks like, individually or community, but there may be room for agreement in on the idea that a good life – a virtuous life – involves following that path, which is to say, the path of prudence.

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21 June 2024

4 min read

It's our mistakes that make us human

What we learn distinguishes us from tech.

Silvianne Aspray

Silvianne Aspray is a theologian and postdoctoral fellow at the University of Cambridge.

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Francisco De Legarreta C. on Unsplash.

The distinction between technology and human beings has become blurry: AI seems to be able to listen, answer our questions, even respond to our feelings. It becomes increasingly easy to confuse machines with humans. In this situation, it is increasingly important to ask: What makes us human, in distinction from machines? There are many answers to this question, but for now I would like to focus on just one aspect of what I think is distinctively human: As human beings, we live and learn in time.

To be human means to be intrinsically temporal. We live in time and are oriented towards a future good. We are learning animals, and our learning is bound up with the taking of time. When we learn to know or to do something, we necessarily make mistakes, and we take practice. But keeping in view something we desire – a future good – we keep going.

Let’s take the example of language. We acquire language in community over time. Toddlers make all sorts of hilarious mistakes when they first try to talk, and it takes them a long time even to get single words right, let alone to try and form sentences. But they keep trying, and they eventually learn. The same goes with love: Knowing how to love our family or our neighbours near and far is not something we are good at instantly. It is not the sort of learning where you absorb a piece of information and then you ‘get’ it. No, we learn it over time, we imitate others, we practice and even when we have learned, in the abstract, what it is to be loving, we keep getting it wrong.

This, too, is part of what it means to be human: to make mistakes. Not the sort of mistakes machines make, when they classify some information wrongly, for instance, but the very human mistake of falling short of your own ideal. Of striving towards something you desire – happiness, in the broadest of terms – and yet falling short, in your actions, of that very goal. But there’s another very human thing right here: Human beings can also change. They – we – can have a change of heart, be transformed, and at some point in time, actually start to do the right thing – even against all the odds. Statistics of past behaviours, do not always correctly predict future outcomes. Part of being human means that we can be transformed.

Transformation sometimes comes suddenly, when an overwhelming, awe-inspiring experience changes somebody’s life as by a bolt of lightning. Much more commonly, though, such transformation takes time. Through taking up small practices, we can form new habits, gradually acquire virtue, and do the right thing more often than not. This is so human: We are anything but perfect. As Christians would say: We have a tendency to entangle ourselves in the mess of sin and guilt. But we also bear the image of the Holy One who made us, and by the grace and favour of that One, we are not forever stuck in the mess. We are redeemed: are given the strength to keep trying, despite the mistakes we make, and given the grace to acquire virtue and become better people over time. All of this to say that being human means to live in time, and to learn in time.

So, this is a real difference between human beings and machines: Human beings can, and do strive toward a future good.

Now compare this to the most complex of machines. We say that AI is able to “learn”. But what does it mean to learn, for AI? Machine learning is usually categorized into supervised learning, unsupervised and self-supervised learning. Supervised learning means that a model is trained for a specific task based on correctly labelled data. For instance, if a model is to predict whether a mammogram image contains a cancerous tumour, it is given many example images which are correctly classed as ‘contains cancer’ or ‘does not contain cancer’. That way, it is “taught” to recognise cancer in unlabelled mammograms. Unsupervised learning is different. Here, the system looks for patterns in the dataset it is given. It clusters and groups data without relying on predefined labels. Self-supervised learning uses both methods: Here, the system uses parts of the data itself as a kind of label – such as, for instance, predicting the upper half of an image from its lower half, or the next word in a given text. This is the predominant paradigm for how contemporary large-scale AI models “learn”.

In each case, AI’s learning is necessarily based on data sets. Learning happens with reference to pre-given data, and in that sense with reference to the past. It may look like such models can consider the future, and have future goals, but only insofar as they have picked up patterns in past data, which they use to predict future patterns – as if the future was nothing but a repetition of the past.

So this is a real difference between human beings and machines: Human beings can, and do strive toward a future good. Machines, by contrast, are always oriented towards the past of the data that was fed to them. Human beings are intrinsically temporal beings, whereas machines are defined by temporality only in a very limited sense: it takes time to upload data, and for the data to be processed, for instance. Time, for machines, is nothing but an extension of the past, whereas for human beings, it is an invitation to and the possibility for being transformed for the sake of a future good. We, human beings, are intrinsically temporal, living in time towards a future good – which machines do not.

In the face of new technologies we need a sharpened sense for the strange and awe-inspiring species that is the human race, and cultivate a new sense of wonder about humanity itself.