You have probably sat across from your partner at dinner, mid-argument or mid-silence, and wondered what exactly holds two people together over the long haul. We tend to assume it is love alone – that raw, initial spark – that does all the heavy lifting. But what if lasting love were less like a flame and more like a piece of furniture? That metaphor might sound strange, yet it captures something most relationship advice misses entirely. The answer has less to do with grand gestures and far more to do with structure.
Why love alone is never quite enough
For a couple to truly be a couple, enduring love is the starting point – the bond that ties two beings together over time. But according to psychoanalyst Juan David Nasio, love by itself cannot guarantee longevity. Partners also need to be different and complementary. They play what Nasio describes as masculine and feminine roles, regardless of their biological sex. These are not rigid categories but fluid positions that each person can inhabit at different moments.
And here is the uncomfortable part: men and women – or any two partners – are profoundly different from one another. Sometimes they feel like strangers. Sometimes they are downright hostile toward each other. Yet we cannot live without each other. So if love is necessary but insufficient, what else does a relationship need to survive decades rather than just seasons?
The stool allegory – four legs your relationship cannot afford to lose
To answer that question, Nasio offers what he calls the Allegory of the Stool. Picture a stool with four legs topped by a flat seat. That seat represents the stability of a couple. Remove one leg and the whole thing wobbles. Remove two and it collapses. Each leg corresponds to a specific pillar of lasting love, and they work only when all four are firmly in place.
The first leg – and Nasio considers it the most important – is sexuality. Physical intimacy is the foundation, the leg that bears the greatest share of weight. Without a sexual connection that both partners invest in over time, the stool starts to tilt before the other legs even get a chance to help.
The second leg is mutual admiration. This is not about flattery or surface-level compliments. It is a genuine, reciprocal respect for who the other person is and what they bring to the partnership. When you admire your partner, you see them clearly – flaws included – and still feel a pull of appreciation. When they admire you back with the same honesty, the stool gains real balance.
The third leg is rituals. These are the repeated, shared habits that quietly knit a couple’s daily life together. Think of them as the small, predictable rhythms – morning coffee made a certain way, a weekly walk, the way you say goodnight – that signal continuity and care without needing a single dramatic declaration.
The fourth leg is role mobility within the couple. Partners who last are not locked into one fixed dynamic. They shift between masculine and feminine roles fluidly, adapting to circumstances, trading the lead depending on what the moment demands. This flexibility prevents resentment from calcifying and keeps the relationship alive with fresh energy.
The quieter forces that hold everything steady
Beyond those four pillars, Nasio adds two additional elements that act almost like glue between the legs of the stool. The first is the capacity for mutual concessions. Compromise is not glamorous, but couples who endure are couples who know when to bend. Neither partner always gets their way, and that is precisely the point.
The second is respecting each other’s necessary solitude. You might think togetherness is what a relationship is all about, but lasting partnerships also require space – room for each person to be alone without that solitude being perceived as rejection. Honoring your partner’s need for quiet autonomy is, paradoxically, one of the most intimate things you can do.
There is also a deeper, bittersweet truth embedded in Nasio’s perspective. The person you love is the person who draws the very best out of you. And yet, simply by being someone other than you, that same person inevitably limits you, curbs your desires, and sometimes causes you pain. Accepting this duality – that love both elevates and constrains – is perhaps the most mature understanding a couple can reach together.
The bottom line
Lasting love is not a mystery reserved for the lucky few. According to Juan David Nasio’s Allegory of the Stool, it rests on four concrete pillars: sexuality, mutual admiration, rituals, and the flexibility to shift roles within the relationship. Layer in genuine compromise and respect for each other’s solitude, and you have a framework that is surprisingly actionable. The person who brings out the best in you will also challenge you – and that tension is not a flaw in the design. It is the design.