I think the Harry books are actually very moral, but some people just object to witchcraft being mentioned in a children's book.

I like a quiet life, you know me.

Are you planning to follow a career in Magical Law, Miss Granger?” asked Scrimgeour. “No, I’m not,” retorted Hermione. “I’m hoping to do some good in the world!

This group had a kind of dark glamour within the castle. They were a motley collection; a mixture of the weak seeking protection, the ambitious seeking some shared glory, and the thuggish gravitating toward a leader who could show them more refined forms of cruelty.

Harry, despite your privileged insight into Voldemort’s world (which, incidentally, is a gift any Death Eater would kill to have), you have never been seduced by the Dark Arts, never, even for a second, shown the slightest desire to become one of Voldemort’s followers!” “Of course I haven’t!” said Harry indignantly. “He killed my mum and dad!” “You are protected, in short, by your ability to love!” said Dumbledore loudly.

Failure means a stripping away of the inessential.

You might belong in Hufflepuff, Where they are just and loyal, Those patient Hufflepuffs are true, And unafraid of toil.