She turned to examine Dr. Breed, looking at him with helpless reproach. She hated people who thought too much. At that moment, she struck me as an appropriate representative for almost all mankind.

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.

...we took the 10 machines we agreed were the most beguiling, and we put them on permanent exhibit in the foyer of this library underneath a sign whose words can surely be applied to this whole ruined planet nowadays: THE COMPLICATED FUTILITY OF IGNORANCE

Vanity rather than wisdom determines how the world is run.

The complicated futility of ignorance.