In the words of Peter Fisk, the author of Creative Genius: An Innovative Guide for Business Leaders, Border Crossers and Game Changers,4 “Leonardo was a master of cross-over. He combined ideas from animal and plant studies with psychology and fashion, anatomy, and architecture. From this, he formed his understanding of mechanics, and everything from hydraulic pumps to new musical instruments emerged. He used analogies; for example, he wrote short fables like Aesop, stories that seemed to be to entertain children but were, in fact, to communicate to adults the danger of greed and so on.”