The training of a Mord-Sith takes years - to learn to handle the pain. I guess it's also why only women are Mord-Sith, men are too weak.
Terry Goodkind (2010). “Wizard's First Rule”, p.481, RosettaBooks

The training of a Mord-Sith takes years - to learn to handle the pain. I guess it's also why only women are Mord-Sith, men are too weak.