"Muller may have well felt the need to stress that "an ethnologist who speaks of an Aryan race, Aryan eyes and hair, and Aryan blood is as great a sinner as a linguist who speaks of a dolicocephalic dictionary or a brachycephalic grammar"; after all, it was he who had been a principal cause in such misconceptions through his earlier remarks on the common blood that the "English soldier" shared with the "dark Bengali"."
January 1, 1970
https://en.wikiquote.org/wiki/Max_M%C3%BCller