"Bergeron's epitaph for the planet, I remember, which he said should be carved in big letters in a wall of the Grand Canyon for the flying-saucer people to find, was this:WE COULD HAVE SAVED IT BUT WE WERE TOO DOGGONE CHEAPOnly he didn't say 'doggone.'""
January 1, 1970
https://en.wikiquote.org/wiki/Kurt_Vonnegut