In addition, reasonable people take the time to find out why their arguments are rejected, and in the future either use a different argument or at least address the identified deficiency.
Sometimes the deficiency that needs to identified is the intellectual capability of the people with whom you are arguing. You can be addressed that problem by speaking to different people or choosing a different subject. This isn't 'reasonable' but it is certainly practical and rational. Being reasonable is overrated.
Thanks to David Brin, I've discovered a blogger, Michael Dobson, who has written, among other things, a fourteen-part series on cognitive biases. But that's not what I'm linking to today.
This is what I'm linking to:
You're Not Being Reasonable
Yes, much of it is pretty basic stuff, but as he says, a reminder every once in a while comes in handy, and this is as good a summary of the rules for having a reasonable discussion as I've seen anywhere.
And the rest of the blog seems pretty good, too. (Did I mention the fourteen-part series on cognitive biases?)