DE anim[a]nimalium

“Traces of the dispositions of the soul are present in most animated beings which, however, present more evident differences in men: in fact, meekness and wildness, docility and aggressiveness, courageous disposition and cowardice, fears and daring attitudes, and impulses and cunning, and certain traits of intelligence applied to the faculty of comprehension which present themselves like those of man are found in many of them, analogously as it is in the parts of the body. Some animals, in fact, differ from men in more or less, and so it happens for man when compared with many of the animals; other animals however differ on the basis of analogy. In fact, just as in man there is art, wisdom and the ability to understand, so in some animals there is a different but comparable faculty which is inherent by nature.”

ARISTOTELE, Historia Animalium