[twodave]

First you say, "I don't know anyone who has ever said this," all the while appealing to the age and authority of your own philosophy. Then I bring you evidence that people have been saying this for 100 years and you imply it's too old to be relevant.

And really, why would I care about whether my ideas would receive good marks or not from the most ego-stroking subject in all of modern academics? My philosophy professor at university was a self-absorbed little man who I didn't envy then and still don't 15 years later. Why would I bother having an authentic discussion with such a person?

Two obvious hallmarks of disingenuous debate are belittlement and sarcasm.