This study of the philosophical treatises of the Neapolitan Humanist, Neoplatonist, and Neoaristotelian Giovanni Pontano focuses on the works De Fortitudine and De Immanitate. It presents a general account of the Neapolitan humanists's treatment of the anger theme, arguing that it remains directly related to the Quattrocento debates concerning human misery and dignity. It also further examines Pontano's recurrent use of the theme in his description of the final limits separating "human" and "animal" behaviour.