I remember, as a boy of 17 years of age, this was a fascinating thing for me: how we human beings breathe out... — Percy Julian

I remember, as a boy of 17 years of age, this was a fascinating thing for me: how we human beings breathe out carbon dioxide into the air, the leaves of plants pick this carbon dioxide up, and the plant gives off oxygen, which we can breathe in and keep our life going.

Author: Percy Julian

Insight: There's something almost magical about recognizing how your own breath feeds the world around you. Most of us go through life thinking of breathing as purely personal—air goes in, air goes out—without ever really grasping that we're locked in an ancient exchange with every plant we encounter. Julian captures that childhood moment of awe, and it's worth revisiting that feeling as an adult, because it actually changes how you see your relationship to nature. The surprising part is how this basic fact makes you simultaneously smaller and more connected. You're not some separate being visiting a planet of plants; you're part of an ongoing chemical conversation that's been happening for millions of years. Every tree, every houseplant, every patch of moss is doing work that keeps you alive. When you really sit with that, environmental concerns stop being abstract moral duties and start feeling personal—almost intimate. You're not just protecting "nature" when you care for green spaces; you're maintaining the literal machinery that trades your waste for your survival. This is why kids who grow things—whether a garden or a single plant—often develop a different kind of ecological awareness. They see themselves as participants in something, not just witnesses to it.