The truly courageous man, then, is moved to act by what is noble, rage helping him: but beasts are moved by pain, i.e. by blows or by fear; for in a wood or a marsh they do not attack man. And so beasts are not courageous, since it is pain and rage that drives them to rush on danger, without foreseeing any of the terrible consequences. If this be courage, then asses must be called courageous when they are hungry; for though you beat them they will not leave off eating. Adulterers also are moved to do many bold deeds by their lust.

Being driven to face danger by pain or rage, then, is not courage proper. However, this kind of courage, whose impulse is rage, seems to be the most natural, and, when deliberate purpose and the right motive are added to it, to become real courage.