Thus spoke St. Alia-of-the-Knife: "The Reverend Mother must combine the seductive wiles of a courtesan with the untouchable majesty of a virgin goddess, holding these attributes in tension so long as the powers of her youth endure. For when youth and beauty have gone, she will find that the place-between, once occupied by tension, has become a wellspring of cunning and resourcefulness."
Attributed to: Princess Irulan
From Chapter 3 of Dune by Herbert, Frank