" I think now he was a man fighting constantly to escape the bars of an invisible cage. You must remember that he was an emperor, father-head of a dynasty that reached back into the dimmest history. But we denied him a legal son. Was this not the most terrible defeat a ruler ever suffered? My mother obeyed her Sister Superiors where the Lady Jessica disobeyed. Which of them was the stronger? History already has answered. "

― Frank Herbert , Dune