Each one of us is so amazing. Right now we have in us one quadrillion cells. That's one hundred trillion times one thousand. About nine hundred trillion of those cells are not human. They're virus, bacteria, and microorganisms. What makes us human, ironically, is not human. If they were not there we would rot like a piece of fruit in a few days. So be grateful for those free riders. But I want you to experience something, because every second in our bodies, one septillion things are happening. That's a one with 24 zeros. Another way to imagine one septillion is it's ten times more than all the stars and planets in the known universe. Now, let me ask a question: Can you feel it? Seriously. One septillion interactions. It's called life. You can feel it. Except we talk and we get busy and we ignore that feeling.
Paul Hawken