I don't think I've ever worked so hard on something, but working on Macintosh was the neatest experience of my... — Steve Jobs

I don't think I've ever worked so hard on something, but working on Macintosh was the neatest experience of my life. Almost everyone who worked on it will say that. None of us wanted to release it at the end. It was as though we knew that once it was out of our hands, it wouldn't be ours anymore.

Author: Steve Jobs

Insight: There's something bittersweet about finishing something you've poured yourself into completely. You spend months or years wrestling with details no one else will ever notice—the angle of a curve, the exact shade of a color, how something feels in your hand. And then one day it's done, and you have to let it go. The people who worked on the original Macintosh felt this so intensely that releasing it felt almost like loss, even though they knew it was good. What's striking is that this feeling doesn't require you to be inventing revolutionary technology. It happens to writers finishing novels they'll never quite feel done with, to parents watching kids move out, to anyone who's made something they genuinely care about. The closer you get to excellence, the more your fingerprints are on something, the harder it becomes to release it into the world. You can see all the ways it could be better. You know its flaws intimately. But there's also something liberating in that handoff. The moment something leaves you, it starts becoming something else—it becomes what other people make of it. Your vision stays preserved in the object itself, but its life beyond you is no longer yours to control or worry about. Maybe that's when the real neatness begins.

Source: Walter Isaacson, Steve Jobs, p. 173, 2011