Remus Lupin was supposed to be on the H.I.V. metaphor. It was someone who had been infected young, who suffered stigma, who had a fear of infecting others, who was terrified he would pass on his condition to his son. And it was a way of examining prejudice, unwarranted prejudice towards a group of people. And also, examining why people might become embittered when they're treated that unfairly.

Harry - you're a great wizard, you know." "I'm not as good as you," said Harry, very embarrassed, as she let go of him. "Me!" said Hermione. "Books! And cleverness! There are more important things - friendship and bravery and - oh Harry - be careful!

By Gryffindor, the bravest were Prized far beyond the rest; For Ravenclaw, the cleverest Would always be the best; For Hufflepuff, hard workers were Most worthy of admission; And power-hungry Slytherin Loved those of great ambition.

But Snape always seemed to hate me so much.

The Chasers throw the Quaffle and put it through the hoops to score,” Harry recited. “So — that’s sort of like basketball on broomsticks with six hoops, isn’t it?” “What’s basketball?” said Wood curiously. “Never mind,” said Harry quickly.

Anything's possible if you've got enough nerve.

You could be great, you know, it’s all here in your head, and Slytherin will help you on the way to greatness, no doubt about that.