Last week I found myself at one of those gatherings where everyone seemed to have perfected the art of being impressive.

Within twenty minutes I'd learned who had climbed Kilimanjaro, who had invested early in Bitcoin, whose daughter had graduated from an Ivy League school, and who had recently returned from a twelve-day expedition through Antarctica.

It was all very accomplished.

It was also a little exhausting.

Then an older woman wandered into the conversation carrying nothing more glamorous than a glass of white wine and a cardigan that looked like it had lived a wonderful life. Someone asked where she'd been lately.

"Oh," she said, "mostly to the public library."

The circle went quiet.

Not because anyone thought the library was boring.

Because she somehow made it sound like Venice.

She told us she'd become fascinated with Japanese woodblock prints after wandering down the wrong aisle. That curiosity led her to a documentary about Kyoto, which inspired her to learn enough Japanese to recognize a few words on restaurant menus. A month later she'd taken herself to the city's annual Japanese festival—not because she'd planned it, but because she suddenly wanted to hear the language spoken aloud.

She hadn't crossed an ocean.

She'd crossed an aisle.

And somehow she'd become the most interesting person in the room.

I've thought about her ever since.

For years I believed interesting people collected extraordinary experiences.

Now I suspect they collect extraordinary curiosity.

There's a difference.

One requires money.

The other requires attention.

Some of the happiest years of my life have been marked by airline boarding passes. I love airports, train stations, riverboats, little cafés tucked into streets I can't pronounce, and the delicious feeling of realizing you've become completely lost in a city where you don't speak the language.

But I've also noticed something quietly inconvenient.

The people who remain fascinating long after the vacation photos are forgotten aren't fascinating because they travel.

They're fascinating because they notice.

Anthony Bourdain could have spent an hour describing the architecture of a cathedral. Instead, he'd often become enchanted by the woman quietly making dumplings in the alley behind it.

Rick Steves rarely tells you only where to go.

He teaches you how to look.

Even Oscar Wilde, who could have easily become unbearable in lesser hands, understood that life wasn't improved by accumulating luxury. It was improved by paying exquisite attention.

Curiosity, it turns out, is the world's cheapest luxury.

It's also one of the few that appreciates with age.

Children understand this instinctively.

They ask impossible numbers of questions.

Why is the sky blue?

Why do birds migrate?

Who invented buttons?

Adults eventually stop asking.

Not because we've learned enough.

Because somewhere along the way we confused certainty with wisdom.

I catch myself doing it more often than I'd like to admit.

I'll walk past the same coffee shop fifty times before wondering who chose the music.

I'll admire an old building without asking who carved the stone.

I'll order the same meal because I already know I'll like it.

Efficiency is wonderful.

Until it quietly replaces curiosity.

There's a reason bookstores feel hopeful.

Nobody walks into one already knowing exactly who they'll become by the time they leave.

The shelves are invitations disguised as furniture.

Libraries work the same way.

Museums.

Botanical gardens.

Train stations.

Even grocery stores, if you're paying attention.

Every ordinary place is hiding a side door into another life.

The woman at that party reminded me that reinvention doesn't always begin with a passport.

Sometimes it begins with a library card.

Or a cookbook from a country you've never visited.

Or sitting down beside someone whose life makes no sense to yours and asking, "Tell me how you got here."

Interesting people become interesting because they remain interested.

I've come to believe that sentence explains more about aging well than almost anything else.

We spend so much of our lives trying to preserve youth.

Perhaps what we're actually trying to preserve is wonder.

Wonder is what makes seventy-year-olds enroll in Italian classes.

Wonder is what sends someone to their first watercolor workshop after retirement.

Wonder is what convinces a widow to host dinner parties again.

Wonder is what persuades a man who's worn nothing but navy sweaters for thirty years to buy the outrageous mustard-colored jacket because, quite frankly, why not?

None of those decisions make someone younger.

They make someone larger.

And maybe that's a better goal.

So here's your permission for today.

Become interested in something completely impractical.

Learn the history of stained glass.

Taste a fruit you've never heard of.

Read a novel from a country you've never visited.

Walk into the antique store you've always passed without entering.

Ask your oldest friend a question you've somehow never asked.

You don't have to justify your curiosity.

Curiosity is justification enough.

Because one day you'll find yourself at a party.

Someone will ask what you've been up to.

And perhaps you'll smile over your glass of wine before saying,

"Mostly I've been paying attention."

Funny how that sounds a little like traveling.

And perhaps, in the ways that matter most, it always has.