Human life is fundamentally intertwined with relationships—love, sex, and friendship—elements that shape our identities and reflect our deepest values.
Throughout history, philosophers have sought to understand these aspects of human existence, offering insights that continue to influence contemporary thought. This column explores how four great thinkers—Plato, Confucius, Augustine and Aristotle—approach love, sex and friendship, revealing their visions of virtue, harmony and the good life. Before I begin, I credit the brilliant Harvard professor Sergio Imparato for suggesting this mix of thinkers, who he features in an upcoming college course on this column’s topic.
Plato encouraged that we reach far beyond the physical on a “ladder of love.” He would have us lift our soul past a focus on physical attraction to the contemplation of pure and eternal truths—the forms. For Plato, love begins with physical attraction but ideally progresses towards the love of the form of beauty itself. Plato went so far as to suggest that sex is a regrettable but necessary part of human nature, an initial stage that must be transcended through philosophical love (agape), leading to the contemplation of eternal forms.
Plato idealized friendship as rooted in the shared pursuit of the good and truth—a bond that fosters the harmony necessary for the well-being of the soul and the state. Friends who seek truth and virtue contribute to justice and harmony of the soul.
For Plato, love and friendship are ultimately about transcending the material and forging a union with eternal ideals—an ascent from sensual pleasure to divine wisdom.
According to Confucius, love (particularly ren) is about cultivating moral virtues that lead to harmonious relationships and social stability. Ren is the core virtue, an attitude of benevolence and kindness rooted in empathy. Ren guides proper conduct in family, friendship and society. Confucius emphasizes yi (righteousness) and xiao (filial piety) as foundational human relationships. Friendship, in this context, is an extension of ren based on sincerity, loyalty and mutual respect.
Confucius advocates for harmonious family life based on proper roles rather than emphasizing sex as a spiritual or moral ideal. Sexual relations are seen as part of social harmony, replete with ritual propriety.
In Confucius’ view, genuine love, manifested in ren, is about moral cultivation, social harmony and fulfilling one’s role within the larger fabric of community.
Augustine, influenced by Christian doctrine, viewed love (caritas) primarily as divine love—selfless and directed towards God. Human love must be ordered rightly to avoid sin.
Augustine advocated that our ultimate love should be directed towards God. Love for others is a reflection of divine love but it can be sinful when it is idolatrous or self-centered.
Augustine sees sex as inherently linked to lust and sin, as an appetite that can distract from spiritual pursuits unless properly subordinated to divine love. While Augustine acknowledged friendship, he emphasized love of God and the spiritual community over worldly attachments. He viewed earthly friendships as transient compared to divine communion.
Augustine’s theology urges a transformation of desire, turning love inward toward spiritual virtues and away from fleeting pleasures. In Augustine’s view, love and sex are fraught with moral risks. Salvation involves mastering caritas—true love rooted in divine grace—and affirming that earthly passions must be subordinated to divine truth.
Aristotle’s Nicomachean Ethics examines different kinds of friendship: utility, pleasure and perfect virtue (philia). He elevated genuine friendship as central to a fulfilled life. For him, the highest form of friendship was between virtuous individuals who love each other for their moral excellence and seek to nurture goodness.
Aristotle believed that friendship grounded in virtue contributes to eudaimonia, human flourishing, and that it helps individuals develop moral virtues.
While Aristotle recognized the importance of procreation and the role of sex within marriage as natural and necessary, he emphasized moderation (mesotes) and the importance of self-control. He linked love and friendship with rational activity, especially the contemplative life, arguing that the highest human good arises from the union of friendship and intellectual pursuits.
For Aristotle, love and friendship are about building virtue and achieving happiness through moral excellence, moderation and mutual growth.
I initially wondered why Professor Imparato chose such philosophically and temperamentally diverse thinkers but, upon reflection, I find convergence on several key points:
All the philosophers emphasized that love and friendship are essential avenues for cultivating virtue, whether through divine love, moral benevolence or intellectual friendship.
Each considered love and related bonds as catalysts for personal development, spiritual ascent or social harmony.
Augustine warned against uncontrolled passions, while Plato, Aristotle and Confucius advocated for aligning love with higher aims like truth, virtue and harmony.
The thinkers believed that genuine love and trust forge the social bonds underpinning a well-ordered society and a fulfilled individual life.
Exploring love, sex and friendship through these diverse philosophical lenses enriches our understanding of their roles in human life. Plato’s ascent to the divine, Confucius’ cultivation of social harmony, Augustine’s spiritual mastery and Aristotle’s pursuit of virtue all affirm that authentic relationships are pathways to higher good—whether divine, moral, or communal.
Their teachings collectively challenge us to approach love and connection not merely as personal feelings, but as disciplines that shape character, foster harmony and lead us toward the fullness of a flourishing life.
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