Many think "Aen Saevherne" - meaning Sage - is simply the Elder Speech term for sorcerer. Yet, to equate a Sage with a common practitioner of magic is akin to considering a newly-drafted private, hay sticking out of his breeches, a witcher's equal simply because both wield swords.
A Sage wields magic, true, and does so with greater skill than even the most accomplished human mages. The great renown and regard in which they are held, however, comes not from this skill but from the other, truly rare abilities they possess.
Nothing is a secret for an elven sage. They see both past and future as easily as the present. They have mastery over all the arcana of magic as well as every domain of scholarship. They are the only ones who understand the nature and operation of the so-called Elder Blood and the gene of Lara Dorren - and they guard this knowledge jealously.
How numerous are the Elven Sages? In all my life I have met only one, Ida Emean of the Blue Mountains. She might possibly be the last representative of this mysterious caste. It is true I have encountered mention of a male elf who might also belong to it, but as of this writing I have been unable to confirm this.