Unfortunately, you are the only one here who thinks so. — Echarmion
So? Philosophy isn't diplomacy and the truth isn't democratic. None of the criticisms offered thus far work. Not my fault, they just don't. Demonstrably don't. If you took a vote on it, I wouldn't win. But that's because most of the voters have made the poor criticisms in question. You have to show a criticism to be good, not just show that a lot of people whose powers of rational discernment have in common that they all seem poor, think that it is good.
I concede that reason self-checks when we are crafting an argument in our minds. But, crucially, this process is open to the reason of other people, who can run it in their minds and tell us their conclusions. That's what differentiates an argument from intuition. I can transmit the argument to someone else, but not the intuition. — Echarmion
I fail to see the distinction you are drawing. Certain chains of thought are valid, and their validity consists in them being chains of thought that Reason approves of. Reason approves of thinking that if P entails Q, and P obtains, then thinking that Q must obtain. She approves of that - tells us to draw that conclusion - and her telling us to do so is what its validity consists in.
How do we know which chains of thought are the ones Reason wants us to engage in and which she does not? We consult our reason and the reason of others. And in consulting our reason we are doing no more than seeing what rational intuitions it generates about the matter. If our rational intuitions are corroborated by the rational intuitions of others who have sincerely engaged in the same process, and we have no independent reason to think our faculties of reason have been corrupted on this particular matter, then that's good evidence that the rational intuitions are accurate. That is, that Reason herself really does approve of it. And how do we know that? Because it is what our faculties of reason say is the case.
Anyway, if you consult your reason and resist any squiggling and squoggling urges, it will be evident that this argument is valid:
1. If I am morally valuable, then I am featuring as the object of a valuing relation (if P, then Q)
2. I am morally valuable (P)
3. Therefore I am featuring as the object of a valuing relation (therefore Q)
And both of those premises also seem supported by reason. It is by reason that we are aware of our moral value and the moral value of others. And anyone who thinks that being morally valuable involves something other than being the object of a valuing relation, they have the burden of proof.
This too is valid:
1. Subjects and only subjects can value things
2. I am valued
3. therefore I am valued by a subject.
So, if I follow reason I now get to the conclusion that my being morally valuable consists in me being valued by a subject - a subject of experience, a mind.
I am one of those myself and there are billions of others. But upon reflection it is simply not plausible that I am the subject in question:
1. if I am the subject whose valuings constitute moral valuings, then if I value something, necessarily it is morally valuable
2. If I value something it is not necessarily morally valuable
3. Therefore I am not the subject whose valuings constitute moral valuings.
That argument works for you too and, I suspect, all other human subjects. And once more, Reason says not jus that the argument is valid, but that it is sound - that its premises are true.
Moral values, then, are the values of a subject, but the subject is not you or I, but someone else. Who? Well the question presupposes that we have to locate her among other subjects - that's absurd. We don't. She is who she is. And who is she? She's the one whose values constitute moral values and whose prescriptions constitute moral prescriptions. She's Reason herself. For moral prescriptions are - as Kant held - simply a subset of the prescriptions of Reason. Well, if moral prescriptions are the prescriptions of a subject, and if moral prescriptions are a subset of the prescriptions of Reason, then Reason is the subject in question.
There. That's the argument again. It is valid all the way through and each leg consists of arguments whose premises seem themselves to be manifest to reason.
The only challenge that this case faces, comes from this argument, one that no-one has yet pressed;
1. If I am morally valuable, I am morally valuable even if no subject values me
2. I am morally valuable
3. Therefore I am morally valuable even if no subject values me.
That too is valid, and that too has premises that are manifest to Reason. Yet it seems to contradict my case.