Who said "We have to be merciful now. That is the only way to be happy."?

This quote is attributed to Kurt Vonnegut.

We have to be merciful now. That is the only way to be happy... - Kurt Vonnegut

"We have to be merciful now. That is the only way to be happy."

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."