Board Thread:Fourth Databook/@comment-3279282-20141105164529/@comment-26302001-20141118050546

It isn't the clan that is that gifted and can learn all those hiden jutsu. Hiruzen himself is a once in a lifetime Genius, and the third God of Shinobi. It isn't surprising that he can use all Konoha's jutsu's and Hiden jutsu's/