Who said "Do what you were meant to do and do it well."?

This quote is attributed to Kurt Vonnegut.

Do what you were meant to do and do it well. - Kurt Vonnegut

"Do what you were meant to do and do it well."

Kurt Vonnegut

Novelist American 1922–2007

"And I urge you to please notice when you are happy, and exclaim or murmur or think at some point, 'If this isn't nice, I don't know what is.'"

"Everything was beautiful and nothing hurt."

"We are here on Earth to fart around, and don't let anybody tell you different."

"So it goes."