Professor Anderson Have you ever noticed the way the wings keep wagging? I mean, I try to look away and think of something else but I'm drawn back irresistibly. I don't think I'd be nervous about flying if the wings didn't wag, but they're solid steel, thick as a bank safe, flexing like tree branches. It's not natural. There's a coldness around my heart. As I've seen your cigarette smoke knock against the ceiling and break in two like a breadstick-- by the way, that's a non-smoking seat.

in Professional Foul, by Tom Stoppard.