Wouldn't you just love to be able to go inside a creative inventive imaginative brain and see how it works to produce things we use?

Try reading Arthur Koestler's "The Act of Creation."

Or try reading any of Eduard de Bono's books on lateral thinking.

Who sees a bird and tries to find a way that humans can fly? Leonardo da Vinci - you can see how his mind thought about this via his anatomical draings of birds, and his technical drawings of mechanical contraptions mimicking the proportions, movements and aerodynamics. He made and tried a few prototypes, but none did much more than glide a few hundred metres.

Coffee or cocoa - practically all origins are traceable on the internet - the more you research, the better you get at typing in the right key words.

Whether evil, devious and corrupt, or empathic, ethical and kind, the difference lies essentially in how children are influenced and raised, particularly in the preverbal years, but up to eight and then up to adulthood and independence -all the phases are important. A few rare characters can start out with horrific backgrounds and still turn out to be heroic people - the difference seems to be whether their empathy manages to survive in tact, and the decisions they make in response to what happens to them in those early years. Psychologists research this question in great depth and breadth. Psychology Today offers free articles online.