Whether the sole motive of anger is slight or contempt?

Objections

Objection 1 : It would seem that slight or contempt is not the sole motive of anger. For Damascene says (De Fide Orth. ii, 16) that we are angry "when we suffer, or think that we are suffering, an injury." But one may suffer an injury without being despised or slighted. Therefore a slight is not the only motive of anger.
Objection 2 : Further, desire for honor and grief for a slight belong to the same subject. But dumb animals do not desire honor. Therefore they are not grieved by being slighted. And yet "they are roused to anger, when wounded," as the Philosopher says (Ethic. iii, 8). Therefore a slight is not the sole motive of anger.
Objection 3 : Further, the Philosopher (Rhet. ii, 2) gives many other causes of anger, for instance, "being forgotten by others; that others should rejoice in our misfortunes; that they should make known our evils; being hindered from doing as we like." Therefore being slighted is not the only motive for being angry.