@kennethamy,
Quote:Arguers also have a secondary goal. It is to persuade others that the conclusions of their arguments are true.
Not in every case. I am pretty sure I often say something of the form, "I believe Q, and I think I believe it because I believe P, and I believe that P implies Q, because of argument A. Is Q not true, and if so, is this because P is not true, or because argument A is not valid?"
In the present instance, for example, Q is the proposition "an argument is not always intended solely to persuade", P is "I often argue in such-and-such a way [as described in the previous paragraph]", and A is "anyone arguing in that way has other possible outcomes in mind, not only the possible outcome that their interlocutor will believe in the truth of their premises and in the validity of their argument, and therefore also in the truth of their conclusions".
(I know this is not yet exactly clear! But I'm watching television at the moment; also, I hesitate to get on to the whole vast topic of what 'reason', 'logic', and 'argument' mean. I hope I've found something small to say, that can be considered in relative isolation.)
The aim is perhaps always to be explicit rather than tacit.
Also, I think that the naked and single-minded intention to persuade is more likely to be associated with irrational rhetoric than with rational argument. Reason is, or should be, modest and open-minded.
If reason vanquishes an opponent, it should be by using that opponent's own strength against him, as if in a kind of verbal martial art, aiming to do no harm.
Also, I suspect (although this is no more than a suspicion) that to be irrational is to mean something other than what one says, while pretending to mean exactly what one says (so that religious fundamentalism is perhaps a paradigm case); an irrational linguistic production is a lie which lies about itself. But that is starting to get on to the larger subject, about which I haven't thought nearly enough.
I think Bertrand Russell once said something like, "The virtue of a logical argument is not that it compels belief in its conclusions, but that it sheds doubt on its premises" - but I can't recall his exact words, and I expect he put it better than that.