“The Dog which stands on the lowest plane is undeniably the Pug Dog. He owes his degeneration to mental deterioration, and naturally cannot elevate himself. He does not comprehend the human mind, neither does the human mind understand him.”
–Peter Scheitlin, nineteenth century naturalist, quoted in Brehm’s Life of Animals.
I don’t endorse these views!
I wonder if the ancestral pug still exists in China. They ought to be a valuable outcross for pugs in the West.