These are some of my own quotes about the series. Feel free to add your own.
How can Harry Potter not be real? After all, reality is made up of what you believe in.
Words have great power. If two words can kill a person, I'd hate to see what a sentence can do.
Which is safer: Quidditch or football? Me, I'd say Quidditch. You can't break an ankle while on a broom.
Wave a stick around. It looks like magic.
Well of course Muggles can't see dementors! No one can see despair until it's right on top of them.
There's a spell for that.
Who'd be dumb enought to eat whatever Fred and George offer? Oh, wait, I can't say it's rhetorical. Crabbe and Goyle are that dumb.
If you stand up for what you believe in, someone in this world is going to call you crazy.
If you go to Hogwarts, saying school is boring is an outright lie.