Smith's universalism is not draconian or one-size-fits-all; what the universal impartial spectator deems proper depends heavily on context, tradition, constraints, and scarcities—exemplified by his strong condemnation of infanticide that nonetheless allows it pardonable when a fleeing parent could not save both themselves and the child—and because what is fit and just is 'loose, vague, and indeterminate,' it must be examined carefully, which opens the door to self-deception.