Board Thread:Theories and Speculation/@comment-26940724-20160318215832/@comment-27913894-20160329191233

I suppose you could count wisdom as a sort of intelligence, since wisdom essentially means you've experienced many things that have, thus, taught you many things. As such, you are now more knowledgeable about it, and now have a greater deal of intelligence concerning that subject. For instance, since Hiruzen maintained the position of Hokage for such a long period of time, he gained a lot of wisdom and experience from it. As such, he knows more about being a Kage than most, and few have had, or currently do have the wisdom and experience that rivals Hiruzen, or surpasses it. Because he has learnt so much about being a Kage, he is more intelligent in the subject. If you think of intelligence in that regard, then Itachi could technically classify as a very intelligent individual.