The recurring advice for writing any good story: keep the interesting parts, remove everything else. If you watch a good biopic, you wouldn’t want to know about their boring afternoon visit to the doctor unless it contributed to the screenplay of the movie.

Being relentlessly and randomly curious about everything around us is something that each of us can push ourselves to do, every waking hour, just as Leonardo did.

Contrary to its literal meaning, vulnerability is not a weakness. As we shall learn, vulnerability is actually about confronting our deepest fears so that we can be honest with ourselves and, by extension, others.