Ron nodded, slowly beginning to loosen up as he saw that there didn't appear to be any right or wrong answers.

"It depends on the wizard. Some of them practice the Dark Arts, and they don't teach that to us in school. But the bad ones, they find a way to learn. Most of them are followers of You-Know-Who, and they're pretty much anti-Muggle. They believe the Purebloods are better than Muggles and Muggle-borns, and... well, things got pretty bad when You-Know-Who led them into power. I don't really remember all that, though. I was just a baby."