Aes Sedai (idea) by yitz - Everything2.com

Aes Sedai greatly resemble the Bene Gesserit.
They both:

are a society exclusively of women.
have a greater goal in mind and hold to the importance of their own order above all else.
fear the male equivalent/side of their order.
are considered witches with strange and scary powers by the populace at large.
meddle in everyone else's affairs to their own ends.
have unusually long lives somehow linked to their abilities.
have rotund absent-minded yet sneaky archivists. (Bellonda, Verin) (okay, so I just threw this one in for fun.)
have their own secret codes, languages and histories.
are lead by a single leader checked by a supervisory group.
are heavily dependent on a particular substance from which all their power derives. (Melange, Saidar)
come into conflict with twisted lethal versions of themselves. (Honored Matres, Damane)

_{please point out any additional similarities or correct mistakes.}

similarities between "Dune" and "Wheel of Time"	Dark One's Dictionary	The Wheel of Time	Nynaeve al'Meara
Angreal	Glossary of The Wheel of Time	James Gosling	PHB
saidin	unixism	larval stage	Heartstone
code grinder	saidar	Bene Gesserit	Worse is better
gelfling	Myrddraal	Shayol Ghul	Lanfear
Lady Jessica	Holy Wars	Emacs	Saidai