Every single piece of research show that better-educated people have a higher income, lead happier lives, educate better their kids, are more productive, spend less time doing repetitive work, have less issues with substance abuse and violence. Better educated people are just happier, except for one thing. They know there is so much more to learn. The more you know, the more you realize there is to know, and the more you appreciate what previous generations did. The more you know, the more you understand that people can look at the same idea from different points of views, so yours is just one of the many possible ones. So education also makes us more humble, better at understanding other cultures, more prone to respect and be tolerant to other peoples and traditions. Education also makes us more capable to see what we can become. As Paulo Freire would say, it guides us out of the here-and-now towards the world of possibilities, of solutions.