I recently stumbled upon this video of Jimmy Carr recently talking about Kurt Vonnegut, and it led me to this amazing poem by Kurt Vonnegut.

True story, Word of Honor:
Joseph Heller, an important and funny writer
now dead,
and I were at a party given by a billionaire
on Shelter Island.

I said, “Joe, how does it make you feel
to know that our host only yesterday
may have made more money
than your novel ‘Catch-22’
has earned in its entire history?”
And Joe said, “I’ve got something he can never have.”
And I said, “What on earth could that be, Joe?”
And Joe said, “The knowledge that I’ve got enough.”
Not bad! Rest in peace!

The New Yorker on May 16th, 2005.

Kurt Vonnegut also referenced this story in his commencment speech at Rice University (1998):

I’ll pass on to you what another Methuselah said to me. He’s Joe Heller, author, as you know, of Catch 22. We were at a party thrown by a multi-billionaire out on Long Island, and I said, “Joe, how does it make you feel to realize that only yesterday our host probably made more money than Catch 22, one of the most popular books of all time, has grossed world-wide over the past forty years?”

Joe said to me, “I have something he can never have.”

I said, “What’s that, Joe?”

And he said, “The knowledge that I’ve got enough.”

Kurt Vonnegut at Rice University (1998)