Aristotle describes the boar's character as impetuous, ardent, choleric and aggressive. The impetuosity (thumos) of this animal appears as a , analogous to the courage of reckless men. From a physiological point of view, this , a necessary but not sufficient condition of moral action, is identified with heating of blood. It is common both to men and animals, and manifests itself as a sort of vital force, linked to the protection of the individual, which reacts strongly to all external aggression.
Boar, thumos, impetuosity, courage, anger, warmth, blood, natural virtue.