I have rooms full of little dongly things and don't want any more. Half the little dongly things I've got, I don't even know what gizmo they're for. More importantly, half the gizmos I've got, I don't know where their little dongly thing is.
Seeing the glass as half empty is more positive than seeing it as half full. Through such a lens the only choice is to pour more. That is righteous pessimism.
Libraries were full of ideas-perhaps the most dangerous and powerful of all weapons.