In the words of that remarkable naturalist, William J. Long, To call a thing intelligence in one creature and reflex action in another, or to speak of the same thing as love or kindness in one and blind impulse in the other, is to be blinder ourselves than the impulse which is supposed to govern animals.
"The Human Side of Animals"
Royal Dixon
"If you weren't blinder than a bat, mother, you'd know by this time what ailed Fan," he said angrily.
"An Alabaster Box"
Mary E. Wilkins Freeman and Florence Morse Kingsley
Have ye never seen, ye blinder-than-bats-how one man holds a patient while his boils are lanced, and yet another makes the hot iron ready?
"King--of the Khyber Rifles"
Talbot Mundy