"But what of the soul?" She asked simply, because, after all, that was what she dealt in. The soul, the creative essence of a person. "If the transformation is mostly biological, but you are still...the Doctor," It felt so odd to call a person that, "Then you, at your core, in that place that truly makes up who you are, you are the same, aren't you?"

It surprised her even that she wasn't questioning his base assumption of being something else. She could see quite well that he was.