J. W. Redfield, Popular Science Monthly (1874)
“ When a man's "head is level," he is on a plane of equality, as a man and an animal, not only with his fellow-men, but with his fellow-creatures, and in a position to harmonize his differences with theirs. This horizontal position of the base-line of the face makes it the standard by which to compare the other lines, and by which to estimate the degrees of intelligence and affection as indicated by the degrees of the angles they make with it. ”
