Augustine’s Ethics: Love, Will, and the Supreme Good

What makes an action truly moral? Is it the outcome it produces, the rule it follows, or something deeper – the love that drives it? For Augustine of Hippo (354-430 CE), one of the most consequential thinkers in the history of Western philosophy, the answer was unmistakable: morality is, at its core, a matter of love. Not love as sentiment or emotion, but love as the fundamental orientation of the human will – directed either toward God, or away from Him. This deceptively simple idea opens into a rich, intricate ethical framework that weaves together eudaimonism, Neo-Platonist thought, Christian theology, and a penetrating analysis of human nature.

Augustine’s starting point: ethics as the pursuit of the supreme good 🔗

Augustine regards ethics as an inquiry into the summum bonum – the supreme good – which he understood as the source and end of all genuine human happiness. In this respect, his moral thought clearly stands in the tradition of ancient eudaimonism: the view that happiness (or flourishing) is the ultimate aim of human life. Aristotle had argued that happiness is achievable through virtue in this world. The Stoics believed the wise person could attain it through rational self-mastery. Augustine disagreed with both.

According to the Stanford Encyclopedia of Philosophy, Augustine followed the broad eudaimonistic structure but departed radically from the ancients by deferring true happiness to the afterlife. He criticized earlier philosophers for their arrogant conviction that philosophical endeavor alone could secure happiness in this life – a conviction he saw as rooted in ignorance of humanity’s fallen condition. For Augustine, no earthly achievement, no philosophical insight, and no worldly pleasure can constitute the highest good. The summum bonum is God Himself, and the highest form of human happiness is the soul’s loving union with God.

This is where Christian doctrine and Neo-Platonic philosophy converge in Augustine’s thought. Drawing on Plato and Plotinus, Augustine accepted the Platonic framework of ascending toward the Good – but, unlike Plato, he identified this Good not as an impersonal form or abstract principle, but as a personal God who loves and calls humanity into relationship. The goal of ethics, then, is not merely to think rightly about the Good, but to love rightly – and to find in that love the true rest and happiness the soul seeks.

Love as the foundation of moral action 🔗

For Augustine, love is not one moral consideration among many – it is the very engine of the moral life. Every human action, he argues, is driven by love. What determines whether an action is good or evil is not primarily what is done, but what is loved, and whether that love is properly ordered. Augustine’s theory casts ethics as the pursuit of the supreme good through correctly directed love: humans must love objects that are genuinely worthy of love, in the appropriate manner, and in the right order of priority.

This leads to one of Augustine’s most distinctive concepts: the ordo amoris, or the ordered hierarchy of loves. In his City of God and On Christian Doctrine, Augustine argued that virtue is nothing other than rightly ordered love – and that moral failure consists in loving good things in the wrong order, or with the wrong degree of attachment. Created things are not evil; the problem arises when they are loved more than the Creator, or when a lesser good is given priority over a higher one.

As one reading of Augustine’s City of God puts it, virtue lies not merely in loving the right objects but in loving them in the right order. No created thing is in itself evil, but any created thing can be loved in a disordered, and therefore sinful, way. The miser who prefers gold over justice reveals no fault in gold – only a flaw in his own disordered will.

Frui and uti: enjoying God, using created things 🔗

Augustine gives this principle a precise technical form through his distinction between frui (enjoyment) and uti (use). In De Doctrina Christiana, Augustine defines frui as holding fast to something in love for its own sake, and uti as applying something as a means toward what we truly love. God alone is to be enjoyed – that is, loved as the final end in Himself. Everything else, including other people and earthly goods, is to be used – meaning loved in a way that refers back to God as the ultimate destination.

This is not a cold or instrumentalizing view of human relationships. Augustine is clear that to “use” others in his sense simply means assisting one another in focusing life on the love of God – in other words, genuinely willing their highest good, which is union with God. To love another person rightly is to love them in the direction of their deepest fulfillment. The frui/uti distinction is therefore a map of moral seriousness, not a license for treating people as instruments.

The will, self-love, and the root of sin 🔗

Augustine’s ethics places extraordinary weight on the will as the seat of moral agency. It is the will, directed by love, that determines the moral quality of an action. All of ethics, for Augustine, reduces to a single question: will you direct your will toward God, or toward something else? Sin, in this framework, is not primarily a matter of breaking rules. It is misdirected love – a disordering of the will that turns it away from God and toward lesser goods, often the self.

Augustine identifies pride (superbia) as the root of sin. Pride is the love of self taken to an extreme – placing one’s own desires, judgment, or will above God’s. Augustine came down firmly on the side of love as moral motivation, insisting that those who follow the moral law merely out of fear of punishment are not truly keeping it at all. True moral action requires the right internal disposition – a heart genuinely oriented toward God – not mere external compliance with rules.

This inner-life dimension of Augustine’s ethics sets him apart from legalistic approaches to morality. What matters is not the outward act in isolation, but the love – or disordered love – from which it springs. A generous act performed out of vanity is, in Augustine’s terms, morally compromised because its ultimate object is the self, not God or neighbor.

Original sin and the wounded will 🔗

Augustine does not pretend that properly ordering love is easy. On the contrary, he argues that the human will has been profoundly damaged by original sin. According to Augustine, Adam’s sin is transmitted to all of humanity, resulting in a nature marked by concupiscence – a disordered, hurtful desire that enfeebles the freedom of the will without entirely destroying it. Humans are inclined, in their fallen state, to love disorderedly: to prioritize pleasure, status, power, and self over God.

This is why Augustine insists that divine grace is not optional, but necessary for genuine moral life. Left to their own devices, humans tend toward cupidity – a love that grasps at the world – rather than charity, the love that ascends to God. Grace does not override human freedom, but it heals and reorients the will, enabling the person to love rightly. Augustine believed that all human beings bear the burden of original sin and are incapable of redeeming themselves by their own efforts, which is why the moral life, for him, is inseparable from the life of faith and dependence on God.

Virtue as rightly ordered love 🔗

Augustine’s account of virtue flows directly from his theology of love. The classical Greek tradition identified four cardinal virtues: prudence, courage, justice, and temperance. Augustine retains these, but redefines them entirely in terms of love directed toward God. In his early work De Moribus Ecclesiae, he reframes the four virtues as expressions of love for God: temperance is love preserving itself whole for God; fortitude is love enduring all things for God’s sake; justice is love serving God alone and thereby ruling rightly; and prudence is love discerning wisely between what helps and what hinders the pursuit of God.

What is striking here is the unity Augustine gives to the virtues. They are not independent moral traits to be cultivated separately. They are all modes of one fundamental reality: love rightly directed. This means that for Augustine, virtue cannot be separated from the Holy Spirit’s work in the soul – it is not a human achievement alone, but the fruit of a transformed will. Moral excellence, for Augustine, is always also spiritual transformation.

Love of God and love of neighbor 🔗

A potential objection arises here: if God is the only proper final end of love, does Augustine’s ethics collapse into a purely vertical, God-and-soul relationship that has no room for genuine love of other people? Augustine’s answer is a firm no. For Augustine, true justice begins with love of God and extends directly to love of others, since love of neighbor is the ultimate expression of love of God. The two loves are not in competition; they are inseparable.

Augustine draws on Christ’s two great commandments – love God above all, and love your neighbor as yourself – as the summary of the entire moral law. He was deeply aware of the tension between these dual motivations and came down decisively on the side of love, not fear or self-interest, as the true source of moral action. Loving one’s neighbor rightly means willing their genuine good – and their deepest good is the same as ours: union with God. In this sense, authentic love of neighbor is an act of love for God expressed through human relationships.

This is also why Augustine insists, famously, that the moral life can be summarized in the maxim: love, and do what you will. If we truly love God, what we desire and choose to do will be what pleases a just and holy God. The point is not that anything goes once you claim to love – it is that a will genuinely transformed by rightly ordered love will naturally tend toward what is good, true, and just. Love, in this sense, is not a substitute for moral law but its fulfillment.

Augustine’s dialogue with Neo-Platonism 🔗

As the Stanford Encyclopedia notes, Augustine grants in City of God that Platonism and Christianity share basic philosophical insights: God is the first principle, the supreme good, and the criterion of knowledge. Augustine’s debt to Plotinus and the Neo-Platonist tradition is genuine and deep. The Neo-Platonists had argued that the human soul must ascend from the material world, through successive levels of reality, toward the One – the ultimate source of all being and goodness. Augustine transforms this ascent: the soul’s journey is not toward an impersonal Absolute but toward the personal God who has already reached out to humanity through grace. And the vehicle of that ascent is not contemplation alone, but love – caritas – which is the theological term for the properly ordered, God-directed love that defines moral life.

The influence of this synthesis was enormous. After Augustine, there were no major developments in Western ethics until the rise of Scholasticism in the 12th and 13th centuries. His framework shaped not only medieval Christian thought but also the broader Western tradition’s understanding of virtue, happiness, free will, and moral motivation.

Why Augustine’s ethics still matters 🔗

Augustine’s ethical framework is not a relic of late antiquity. Its core questions – What do we love? Are our loves rightly ordered? Do we love God and others in truth, or do we mistake lesser goods for ultimate ones? – remain pressing. His diagnosis of pride and disordered self-love as the engine of moral failure speaks directly to perennial patterns of human behavior. His insistence that moral action cannot be reduced to rule-following, but must flow from a transformed interior disposition, anticipates many later debates in moral philosophy about the relationship between virtue, intention, and character.

Equally important is Augustine’s refusal to separate personal ethics from social ethics. He argued that justice is the cornerstone of civil society, and that upon it depend the unity and nobility of any human community. A society whose members love God and neighbor rightly will tend toward justice. One whose loves are disordered – oriented toward power, possession, or domination – will tend toward injustice and fragmentation. The moral and the political, the personal and the communal, are bound together in Augustine’s vision by the same thread: the proper ordering of love.

What do you think? If morality is ultimately determined by what we love – not just what we do – does that change how you evaluate your own moral life? And can Augustine’s insistence that true happiness lies only in union with God be separated from its specifically Christian theological context, or does the entire ethical framework depend on it?

References

1. https://plato.stanford.edu/entries/augustine/
2. https://www.cambridge.org/core/books/abs/cambridge-companion-to-augustine/augustines-ethics/498851F88327CDE0420D9DFF765F959A
3. https://en.wikipedia.org/wiki/Augustinianism
4. https://en.wikipedia.org/wiki/Ordo_amoris
5. https://circeinstitute.org/blog/blog-ladder-love/
6. https://www.researchgate.net/publication/236745701_The_Value_of_Saint_Augustine's_Use_Enjoyment_Distinction_to_Conjugal_Love
7. https://windowlight.substack.com/p/getting-love-right-jd-vance-and-the
8. https://www.mdpi.com/2077-1444/12/8/585
9. https://www.britannica.com/topic/ethics-philosophy/St-Augustine
10. https://heidelblog.net/2025/02/the-order-of-love-ordo-amoris-proximity-not-ethnicity-part-2/
11. https://voegelinview.com/augustine-on-love-justice-and-pluralism-in-human-nature/
12. https://www.biblicaltraining.org/learn/foundations/et101-essentials-of-christian-ethics/et101-02-augustine-and-aquinas