Sometimes I forget how remarkable my mother is. She holds two degrees in different fields, built a successful professional career, and then, by choice, became a homeschool mom to me and my three siblings until we each left for college.

Without her attention and dedication, I would not be who I am today. She patiently taught me how to drive and consoled me when I failed my license test the first time. She pushed me to study for the SAT and apply to schools I didn’t think I could get into. She showed me, by example, what it looks like to be both accomplished and fully present.

Reflecting on Mother’s Day this past weekend, I keep returning to one conviction: motherhood is a discipline. One that is rigorous, formative, and can be profoundly undervalued in our cultural conversation.

In “Democracy in America”, Alexis de Tocqueville identified the American mother as a lynchpin of civic virtue. He saw in her the quiet but powerful work of building character in the next generation of citizens, not in spite of her domestic role, but through it. The family labored together, and yet he recognized something distinct in the mother’s effort: she was the keeper of stability, the cultivator of the moral imagination that democracy requires. Her influence on the home was, to Tocqueville, inseparable from the health of the republic.

This is not simply a 19th-century sentiment. Research confirms what Tocqueville intuited. A published review of child development literature found that the first five years of life establish the foundational architecture for lifelong health and well-being, and that mothers play a primary role in providing the emotional and physical nourishment that shapes that foundation. The same review concluded that maternal health and engagement measurably influence a child’s development throughout those critical early years.

And the influence runs in both directions. Research published by the Institute for Family Studies highlights findings from a Dutch neuroscience study showing that pregnancy physically reshapes a woman’s brain, streamlining neural pathways in ways that sharpen rather than diminish cognitive capacity. A separate study on productivity found that mothers consistently outperformed their childless peers across nearly every professional performance metric studied. As one summary put it, the demands of motherhood appear to function as a kind of cognitive efficiency training. Far from being a liability, motherhood, the research suggests, may be one of the most mentally demanding and brain-sharpening disciplines a person can undertake.

We do not talk about it that way, of course. The cultural script tends to run in the opposite direction, “mommy brain,” delayed career timelines, the quiet suggestion that choosing to invest deeply in children is a sacrifice of self. But that framing gets it backwards. The mother who is fully present is not diminishing herself. She is, in the most literal neurological sense, being sharpened.

There is a scene in the musical “Mamma Mia” that captures something words struggle to hold. Meryl Streep’s character helps her daughter prepare for her wedding and sings about how quickly the years have moved. The funny little girl becomes a woman, slipping through her fingers.

It is a beautiful and aching portrait of what it means to give your time and attention to someone so fully that the goal is their departure. That is the paradox at the heart of motherhood: to succeed is to be, in some sense, left behind.

Even now, my mother is among the first people I call when I need to think through something. No one else carries the same context for who she has encouraged me to become. That continuity, that deep, accumulated knowledge of a person, is not incidental to what mothers do. It is the work itself.

As a culture, we are quick to celebrate productivity, credentials, and visible achievement. My mother has all of those things. But her most consequential work was the least visible: the daily, patient, irreplaceable labor of raising people.

That is a discipline worth honoring, not just one Sunday a year, but in how we talk about it, value it, and choose it.