All the President's Men1976

Woodward:
This man Gordon Liddy--he's going to be tried along with Hunt and the five burglars--we know he knows a lot, we just don't know what.

Deep Throat:
You changed cabs? You're sure no one followed you?

Woodward:
I did everything you said, but it all seemed--

Deep Throat:
Melodramatic? Things are past that--remember, these are men with switchblade mentalities who run the world as if it were Dodge City.

Woodward:
What's the whole thing about--do you know?

Deep Throat:
What I know, you'll have to find out on your own.

Woodward:
Liddy--you think there's a chance he'll talk?

Deep Throat:
Talk? Once, at a gathering, he put his hand over a candle. And he kept it there. He kept it right in the flame until his flesh seared. A woman who was watching asked, "What's the trick?" And he replied. "The trick is not minding." Compare dialogue from the film Lawrence of Arabia (1962):

Potter:
[trying to copy Lawrence's snuffing a match with his fingers] Oooh! It damn well hurts.

Lawrence:
Certainly it hurts.

Potter:
Well, what's the trick, then?

Lawrence:
The trick, William Potter, is not minding that it hurts.