Something, indeed, not unlike the doctrine of the caſuiſts, ſeems to have been attempted by ſeveral philoſophers. There is ſomething of this kind in the third book of Cicero's offices, where he endeavours like a caſuiſt to give rules for our conduct in many nice caſes, in which it is difficult to determine whereabouts the point of propriety may lie.