iron heart

“Maybe,” I said. “But that's the way you have to be in business. If you haven't got the iron heart, it's the next guy. And that means the next guy'll be building up the bank balance. - I Can Get it for You Wholesale

прямо как Ерофеев

see also Smile Out Loud and LOL in Wiki

“I had to laugh at these goyim and their politeness. They aren’t born smart, like Jews. And they know it and it scares them. So they figure out a substitute. They act like gentlemen to each other. They’re polite all the time, so they can be sure one won’t screw the other.” - Ibid, page 236.

спасибо Cuddihy