We become who we sit next to

There’s an old Neapolitan saying that goes, “Tell me who you go with, and I’ll tell you who you are.” Wise people, those old folks. They didn’t need neuroscience to understand what now fills entire books: that who we spend time with shapes how we think, feel, and act.

Our brain is a sponge. A charming, squishy, highly adaptable sponge. It absorbs the emotional climate, the values, the habits of whoever happens to be closest. Not just physically, but emotionally. So if you hang around people who complain all day, guess what? Eventually, you’ll start finding fault in the weather, the coffee, and even your cat’s attitude.

We mirror more than we think. Because we’re human. The brain is lazy in its own elegant way, it copies. It copies what it sees often, what it hears repeatedly, what’s around every day. And that’s exactly why relationships are not just personal choices. They’re long-term investments. Strategic ones.

This isn’t a manifesto for surrounding yourself with perfect people. (They don’t exist. And if they did, they’d be unbearable at dinner.) But there’s a real difference between relationships that gently stretch you and those that slowly shrink you.

Some people make you stand taller just by being in the room. Often because their way of thinking, their way of responding to the world, their quiet standards… they invite you to lift your game. They challenge you, without trying to change you. And that’s rare.

Others, instead, offer you the warm bath of comfort, but only at the cost of shrinking your vision. These are the folks who secretly flinch when you grow. Who smile when you fail because it reassures them. Who call their passivity “realism” and their fear “maturity.” You know them. We’ve all known them. They’re not bad people. But they are draining. Like a faucet that drips quietly all night. You wake up tired and don’t know why.

Choosing quality relationships is about emotional ecology. Who brings light, who brings fog? Who leaves you a little clearer after each encounter, and who leaves you foggy for hours?

To upgrade your circle is not to discard anyone. It’s to redirect your energy. A shift, not a snub. You don’t need a dramatic speech or a break-up dinner. Just less availability for noise, and more openness to signal. A quieter phone, perhaps, and a louder curiosity.

It means seeking out people who are better than you, yes, better. Kinder, wiser, more disciplined, more at peace. Not to copy them, but to learn. People who make you feel a little uncomfortable in the best way. Not inferior, just... invited to rise. Like stepping into a room where everyone is standing upright and you suddenly realize you’ve been slouching.

Sometimes, these people come as mentors. But not always. Sometimes they’re colleagues, or neighbors, or that one friend who always asks the right question at the wrong moment. They don't need to be perfect. They just need to make you think a bit more, complain a bit less, and show up a bit fuller.

And communities matter too. Online or offline, formal or informal, the groups you engage with teach you what’s normal. If you're in a space where clarity, discipline and kindness are standard, you’ll soon find yourself adjusting not by force, but by gravity. Standards rise in good company. And they fall just as quickly in the wrong one.

Of course, this takes time. And a bit of courage. Especially when some of our old connections feel more like emotional habits than choices. But it’s worth asking: are we keeping someone close because they lift us, or because we’re used to them being there?

And if that question stings a little, good. That means it’s alive. That means it’s time.

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What would change if you were a little more intentional about the people you share time, thoughts, and dreams with?

Not in a harsh or judgmental way—but with clarity and care.

Explore how coaching can support this shift, and apply for a free pro bono cycle with me. Nicola Arnese offers these sessions in his free time to avoid any conflict with professional commitments. Some scheduling flexibility may be required.