Now let us consider whether the punishment which the wicked suffer before the end is good or not. When something ends up being different from what it was in the beginning, its beginning and end are not in the same category. The end of the cycle through which the wicked pass is different from what it was at the beginning. For in the end they attain good, while before the end, they suffer punishment.
If so, the beginning and end of the cycle are not in the same category. The end is good – and this was the original intention of the Will that brings about the entire cycle. However, the intermediate stage or means – the punishment, which comes before the end – is not in the same category as the end. If so, that which comes before the end is not good: it is not what was initially desired by the Will that brings about the cycle.
If we object: Then why does it exist? The answer is that it is not possible to attain the end without it. If it were possible to attain the end without this means, it would not be fitting for this intermediary to exist.