Kant's Categorical Imperetive (sic) “...is useless without stipulations as to what shall count as a relevant description of an action with a view to constructing a maxim about it.”. — Isaac
Anscombe MMP, 1958)
The categorical imperative is a misrepresentation. Anscombe actually said “...his rule on universalized maxims is useless without stipulations....”.
“....A maxim is the subjective principle of volition...”
(Kant FPMM, 1785)
"...Act always on such a maxim as thou canst at the same time will it to be a universal law"; this is the sole condition under which a will can never contradict itself; and such an imperative is categorical....”
(ibid)
It is clear the maxim, the subjective principle, being universalized is antecedent to an imperative behavior. It is the rule that’s claimed to be useless, and the categorical imperative is not a rule. It is a law. The difference is critical to deontological moral philosophy in general, and Kant’s mandate for pure practical reason, the concept of an autonomous, freely determinant will, in particular.
“....there is an imperative which commands a certain conduct immediately, (...) and commands are laws which must be obeyed, that is, must be followed, even in opposition to inclination. (...) the categorical imperative, is not limited by any condition, and as being absolutely, although practically, necessary, may be quite properly called a command....”
(ibid)
Hypothetical imperatives are rules, and if Anscombe’s thesis is to have power, she must only refer to these alone, in which case the they would be useless without a stipulation, which is not necessarily given:
“....When I conceive a hypothetical imperative, in general I do not know beforehand what it will contain until I am given the condition...”
(ibid)
The view to constructing a maxim, with respect to hypothetical imperatives, is nothing more than addressing whatever arbitrary want the description of the action provides. The view to constructing a maxim, with respect to a categorical imperative, involves a command of will, by which the description of the action must abide without exception.
Furthermore, there are as many hypothetical imperatives as there as circumstances that call for a moral determination and their respective maxims are just as many, as suits the mood of the will determining them. But there is one and only one categorical imperative, which demands the maxim one wills to become universal law, from which a certain act must follow necessarily by rule of law such that the act and the law do not contradict themselves, be chosen wisely. This proposition reduces to the proposition that the determinant will (the law) and the judgement of volition (the act) do not contradict themselves.
Is there remaining a question as to what form a relevant description of an action corresponding to a universalized maxim would have? While it is true Kant does not include a description per se, he makes it quite clear what the action is doesn’t matter. If one acts
as if the maxim to which the imperative relates were a universal law, he is justified in calling himself morally worthy.
But, as I said before, I’ll never be famous, so....who cares.