"You should fear them. They kill that which they do not know," Salazar corrected in an acerbic tone, unable to keep his emotions in check.
Anyone who said non-magical folk weren't dangerous had never seen what their ignorant religion could possess them to do. His knowledge of this was not ungrounded. Salazar's whole family, mother, father, and siblings all, were gone because of such ignorance. Helga hadn't seen the blood spill, and while it was fortunate she had not, Salazar wouldn't stand by and let her think they were a harmless people merely because of her young age.
"Your mother did well to begin teaching you. You will continue to learn magic with me, child."