If there's one thing you want people to learn, what would it be and why?

That they need to understand others in order for people to understand them. That the "tragic prince" is just a fallacy and I would really really want other people around me to appreciate art-forms more. Most of the time they find a movie good and just list the content as the reason for it's goodness, not paying attention to any of the craft and it baffles me that more people are not attached to or interested in how art-forms do the things they do.