Farting Around by Kurt Vonnegut

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

-- end of line --

source

I've seen several varying versions of this quote. This post points to Harper's (which I don't have access to) as the original source. Because no one in the comments blasted it, I'm going with that
another version

There's another version of the quote sourced from a PBS interview on this page too