I can hear the little bear in the kitchen, the feet of the step-stool scraping on the tile floor as she climbs on top of it. “I WANT A SNACK,” she announces. The space of a heartbeat passes, maybe two. “I WANT A SNACK,” she repeats, stretching the last word into something like a musical phrase, complete with a crescendo and a fermata.

“Could you ask me that more politely, please?” I say, standing up and putting my book down.

“Please can I have a snack?” she asks, her voice quieting and rising in pitch.

“Yes,” I say. “Thank you for asking nicely.” She rejects my first four offerings—applesauce, a graham cracker, a cup of yogurt, a tangerine—before finally settling on Goldfish crackers as acceptable. “Sank you,” she says as I place the bowl before her, then turns away. I have been dismissed.

“Little Bear, can I have a hug?” I ask.

She laughs. “No!” I am, of course, being ridiculous.

When my youngest was an infant, I called her a berry when she was sweet, and a bear when she was surly. Given her name, these endearments were low-hanging fruit, to be sure. But by the time one is up in the night with his third child, the impressiveness of wit or ingenuity has lost a bit of its urgency; one takes the fruit that is at hand. As tends to happen, one name stuck and the other didn’t, so now at the ripe old age of two years, she is our Little Bear.

Unlike her brother—currently experiencing a growth spurt that makes him devour his meals quickly and then go in search of more—Little Bear likes to linger over her food, picking at it as she plays or sings or watches a video on my tablet. She will nibble until it’s gone, or until something else catches her attention. With two older siblings and a dog, the latter is not an uncommon occurrence. I’ve only managed to get two or three pages further in my book before I hear the slap of her tiny feet as she races down the hallway. “EXCUSE ME!” she shouts. “EXCUSE ME!” She opens her brother’s bedroom door. “EXCUSE ME! DO YOU WANT TO PLAY WITH ME!”

“No,” he says.

She turns to her sister, who is lying on the floor beside their brother’s bed, apparently staging some sort of battle between some Lego Star Wars characters and some Pokémon figurines. “DO YOU WANT TO PLAY WITH ME?” Little Bear asks.

“No,” says her sister.

I hear the door close, and the quick pip-pip-pip-pip-pip of her feet as she runs back toward the living room, where I am setting my book down again. “THEY SAID NO!” she reports. I brace myself. She glares at me for a few seconds, then abruptly turns and goes back to her crackers and the video which has continued playing during her absence.

When you are the smallest person in a house full of opinionated people, you must find ways to assert yourself, and Little Bear does this with aplomb. From her very first day, two things have been clear: she is aware, and she has opinions. It is a cliché to say that a person is “a force to be reckoned with,” and yet this is what she does. In every interaction, she demands that you consider her. I tell myself—and everyone else, really—that I’m heartened by this, that I hope she never loses this insistence, that it will serve her well when she’s grown. I also often (usually) add a rueful grin and the caveat, “I wish she’d take it a little easier on me and her mom sometimes.” But when I’ve put her to bed at night (singing one song to her and one to the stuffed animal by her side, laying the blankets over her in exactly the order she requires) what I find myself turning over and over in my head are all the ways that the world tells little girls to make themselves small and soft and pliant. I can’t protect her from this fate; all I can do is try to prepare her for it, and a strong self-regard and confident assertiveness seem a good armor. Or so I hope.

Perhaps twenty minutes have passed—long enough for me to become engrossed again in the story I’m reading—when I feel a touch at my knee and then Little Bear is pushing the book out of her way and climbing over my lap and onto the chair beside me.

“Hello, Little Bear” I say.

“Oh!” she says, and giggles. “Hello!” She stretches her legs up, crossing one ankle over the other and setting them on my lap. “I’m not touching you!” she says.

“Oh really? Are those your feet?” I ask.

“Yeah!”

“And is that my leg?”

“No! That’s my leg!” She laughs uproariously; that the thigh serving as her footrest belongs to her should be obvious, but she has decided not to hold it against me. She throws her arms around me. “Snuggle time!” she declares. “Snuggles are good!”

Yes. They are.

It was too early when I went in to wake my five-year-old daughter for school this morning. It is always too early when I wake her, even more so for me than for her. There is, nevertheless, something comforting about the familiar mundanity of being tired on a weekday morning, as unpleasant as it usually feels.

When I stepped through her bedroom door she was sitting in the middle of her bed, blinking heavily against the light from the lamp I’d turned on a few minutes before as I stumbled down the hall. She was frowning, her brows bunched in consternation, perhaps even resentment for a moment before she brushed her hair from her eyes and looked up at me, and smiled. Something about this scene brought an image to my mind, a picture from her even-younger days, but it took me a second or two to realize that I was remembering a photograph.

Photographers are often drawn to obsessing about time and memory—though, in that I suppose we are not so terribly different from other artists. From other people in general, really. It makes sense, of course. Photography is something most of us understand as a form of documentation, a way of physicalizing memory, of stretching the infinitesimal into something like permanence. Does it actually do this? Well, no, but it feels like it does, and in some ways that feeling may be more important and true than the literal facts.

Still, seeing some hint of complexity in the interaction between memory and photos, we can’t help ourselves; we just have to wrestle with it. There’s a chapter in Sally Mann’s memoir, Hold Still, in which she laments that her clearest memory of how her father looks comes not from life, but rather from a photograph. She recalls every details of the image, from the gesture of his hands to the color of his belt, but finds herself unable to move beyond the stillness of the picture to the full sensory detail of life experience. There’s no real arguing with this—once you make a photograph, or even spend any appreciable amount of time looking at one, that is what your brain will latch onto.

Nevertheless, I find myself resistant to the now-commonplace cry, “Put down your camera and live!” Perhaps this is merely another expression of the contrarian streak that so aggravated my parents when I was a child. When I poke at the edges of my capacity to remember, though, I find myself dismayed by the brain’s fallibility.

When I was young—fourth grade, perhaps? third?—one of the people I loved most in life was a young man who worked at the day care center where I went after school. I remember that love, the admiration I felt for his creativity, the joy I felt when he would invent stories on the spot. I remember looking up to him, and looking forward to every afternoon I got to spend in his presence. And I remember the deep sadness I felt, the pain and confusion we all felt the day we found out he’d killed himself. His wasn’t the first funeral I’d attended, but it was the first I cried at.

I have no photographs of that boy, and I find that now, some thirty years later, when I search my memory for an image of him, I find only a few indistinct impressions. Dark, curly hair, long in the back in the way so many boys’ hair was in the late 80’s. A bulging Adam’s apple, a cracking voice, a wispy shadow of a moustache that he never got old enough to see become proper stubble. But the color of his eyes, the shape of his nose or chin, his posture or the way he held his hands—all of that is gone now, and it will never return. What would I give to be able to remember even a facsimile, a reflection, a ghost of his smile?

After my friend died, we planted a tree to remember him, beside the fence that separated the school playground from the day care’s yard. Many years later, when I came back to my home town to shoot a photographic series about nostalgia, I stopped to visit the tree, finding that I couldn’t remember exactly which tree it was anymore. I made my best guess, and stood there trying to fix the moment in my mind. I remember now the coolness of the air, the sound of some young mothers talking while their kids ran through the play structure, the roughness of the new bark that showed through where the outer layer peeled off. But mostly I remember the photograph I took.

This morning when I carried my daughter from her bed to the living room, she wrapped her arms around my neck, and I squeezed her gently back. I gave her a little kiss on the top of her head, and her hair tickled my lips, and I thought about the photograph I’d remembered a few moments before. As I so often find myself doing, I found myself paying close attention to the sensations of the moment, the feel of the grooves in the wood floor beneath my feet, the dimness of the house in that moment before the sun was fully up, the weight of my daughter’s small body in my arms. “Remember this,” I silently told myself. “Remember exactly this.” But even as the thought finished, I felt the moment starting to slip away. It’s seven hours later as I write this. I can’t even remember which picture I thought of when I woke her up.