“Honestly, if you were any slower, you’d be going backward.”

“Azkaban - the wizard prison, Goyle." said Malfoy, looking at him in disbelief. "Honestly, if you were any slower, you'd be going backward.”

“To know any thing, time must go backward.”

“You would run much slower if you were dragging something behind you, like a knapsack or a sheriff.”

“Don’t you see? It’s just not possible for one person to watch over another person forever and ever. I mean, suppose we got married. You’d have to work during the day. Who’s going to watch over me while you’re away? Or if you go on a business trip, who’s going to watch over me then? Can I be glued to you every minute of our lives? What kind of equality would there be in that? What kind of relationship would that be? Sooner or later you’d get sick of me. You’d wonder what you were doing with your life, why you were spending all your time babysitting this woman. I couldn’t stand that. It wouldn’t solve any of my problems.”

“Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?”