ABSTRACT
Intelligence, or more generally, cognition, is usually thought of as an active process. We search, classify, evaluate, reason, and so on, in order to solve some problem. In general, when thinking, we activate knowledge or mental strategies, and those of us who do a better job of such activation are usually considered to be more intelligent that those of us who are cognitively less active. But there's more to intelligence than the activation of knowledge from our long-term memories or the implementation of plans or strategies. Sometimes intelligence requires not activating some mental routine or actually inhibiting some mental action from taking place. What we don't think or do is sometimes as important as what we do think or do.
