I believe in magic; I don't believe in gravity.
I believe in my hairgell; I don't believe in Christmas or Valentine's Day, or the love letters that Pansy gave me. I just burn them away.
I believe in Potions, Arithmancy; I don't believe in Divination. I don't believe everything taught in the History of Magic; we never got to hear what the others got to say.
I believe in Father; I believe he will always give me what I want. I don't believe he knows what we're doing. No, I don't believe he knows.
I believe in Snape; I believe he will never fail my tests. I believe that McGonagall will always try to take points from me, though Snape will surely find a way to take more points from Gryffindor.
I believe that Dumbledore is crazy; And no, I don't believe that Sprout and Pomfrey are having an affair.
I believe in power, wealth; I don't believe in Happily Ever After. That never happens.
Who is Cinderella?
I bet Granger doesn't know it too. She does? Right, but I don't believe she knows everything. She doesn't know about us, does she?
She believes in books, I believe in my wand. Mahogony, twelve and a quarter inch, dragon's heartstring. Longer, better than yours. No. I don't believe that you have an invisibility cloak. Show me.
All right, I believe that you have an invisibility cloak, still I don't believe in that stupid thing you call friendship. Not that I don't believe Weasley won't die trying to help you; I just don't think he will be any use at all.
I believe in myself; I don't believe in fate.
"Do you believe in love, Draco?"
Pause.
"I don't believe."
I know.