He was talking about the sign that said 'THE COMPLICATED FUTILITY OF IGNORANCE.'
'All knew was that I didn't want my daughter or anybody's child to see a message that negative every time she comes into the library,' he said. 'And then I found out it was you who was responsible for it.'
'What's so negative about it?' I said.
'What could be a more negative word than "futility"?' he said.
'"Ignorance,"' I said.

Auteur: Kurt Vonnegut Jr.