[The distinction drawn here is between that low form of intelligence which exists in the brute, and that high form characteristic of man. In the Kantian nomenclature, the brute has understanding, but unenlightened by reason; either theoretical or practical. He has intelligence, but not as modified by the forms of space and time and the categories of quantity, quality, relation etc.; and still less as modified and exalted by the ideas of reason—namely, the mathematical ideas, and the moral ideas of God, freedom, and immortality. The animal has no rational intelligence. He has mere understanding without reason.—W.G.T.S.]