One should next consider the difference of the passions from one another. About this point, four queries are raised. (1) Whether the passions that are in the Desiring Power (in concupiscibili) are different from those that are in the Energizing Power (in irascibili). (2) Whether the contrariety belonging to the passions of the Energizing Power is according to the contrariety of good and evil. (3) Whether there is some passion that does not have a contrary. (4) Whether there are some passions that, differing in species and in the same power, are not contraries of one another.