He had the attitude that he could do anything, and therefore so can you. He put his life in my hands. So that made me do something I didn't think I c… - Walter Isaacson

It certainly is true that a lot of really driven people are driven because they're harnessing the demons of their childhood

This inability to ground his fantasies in reality has generally been regarded as one of Leonardo’s major failings. Yet in order to be a true visionary, one has to be willing to overreach and to fail some of the time. Innovation requires a reality distortion field. The things he envisioned for the future often came to pass, even if it took a few centuries. Scuba gear, flying machines, and helicopters now exist. Suction pumps now drain swamps. Along the route of the canal that Leonardo drew there is now a major highway.

When I went to Pixar, I became aware of a great divide. Tech companies don’t understand creativity. They don’t appreciate intuitive thinking, like the ability of an A&R guy at a music label to listen to a hundred artists and have a feel for which five might be successful. And they think that creative people just sit around on couches all day and are undisciplined, because they’ve not seen how driven and disciplined the creative folks at places like Pixar are. On the other hand, music companies are completely clueless about technology. They think they can just go out and hire a few tech folks. But that would be like Apple trying to hire people to produce music. We’d get second-rate A&R people, just like the music companies ended up with second-rate tech people. I’m one of the few people who understands how producing technology requires intuition and creativity, and how producing something artistic takes real discipline.