Non-Aryan means not civilized, and Aryan means civilized. This is the distinction. Now people are very much fond of calling themselves as civilized, Aryan, belonging to the Aryan family. Where is the Aryan civilization? Aryan civilization means this Vedic civilization.
From Srila Prabhupada’s lecture on SB 1.8.47 — Mayapura, October 27, 1974