That not all Punishments nor all Rewards are Equal

AS there are degrees in virtuous actions and in sins (Chap. CXL), so there must be degrees of rewards and punishments: for so the equality of distributive justice requires, that unequal returns be made for unequal services.

Hence it is said: According to the measure of the sin shall also be the measure of the stripes (Deut. xxv, 2).

3.142 : Of the Difference and Order of Punishments
3.144 : Of the Punishment due to Mortal and Venial Sins respectively in regard to the Last End