"I think different Aes Sedai may experience different challenges, depending on their own inclinations," she says. "I have never been especially interested in making weapons, myself."

Fortunately the Oaths do not restrict teaching people any number of destructive things.

"I have been accustomed to them for so long that I am very, very rarely limited by them. Possibly the third oath was the most recent one that I remember being particularly difficult in an exceptionally frustrating way."