"Stanford Encyclopedia of Philosophy: "John Duns Scotus"

“I say that some things can be said to belong to the law of nature in two ways: One way is as first practical principles known from their terms or as conclusions necessarily entailed by them. These are said to belong to the natural law in the strictest sense, and there can be no dispensation in their regard... But this is not the case when we speak in general of all the precepts of the second table. For the reasons behind the commands and prohibitions there are not practical principles that are necessary in an unqualified sense, nor are they simply necessary conclusions from such. For they contain no goodness such as is necessarily prescribed for attaining the goodness of the ultimate end, nor in what is forbidden is there such malice as would turn one away necessarily from the last end, for even if the good found in these were not commanded, the ultimate end could still be loved and attained, whereas if the evil proscribed by them were not forbidden, it would still be consistent with the acquisition of the ultimate end.”