Arthur Schopenhauer,
On Physiognomy
“ And as thought, equally with motion, is a function of the brain, the character of the brain's activity is expressed equally in both, according to the constitution of the individual; stupid people move like lay-figures, while every joint of an intelligent man is eloquent.But gesture and movement are not nearly so good an index of intellectual qualities as the face, the shape and size of the brain, the contraction and movement of the features, and above all the eye,--from the small, dull, dead-looking eye of a pig up through all gradations to the irradiating, flashing eyes of a genius. ”
