Thomas Curtis Clarke,
American Pocket Library of Useful Knowledge…
(1841)
“ Other things being equal, the size of the brain determines the strength of the mind; though if the temperament be active, the same volume of brain will produce proportionally greater mental energy. The size of each organ measures the power of the faculty which is exercised by means of it. Each organ desires its own active gratification in proportion to its development; the larger organs controlling the smaller. ”
