Descartesean

This displays one side of the binary in all its Platonic-Descartesean arrogance.

It had finally become clear to me that as long as one maintained that, in some Descartesean fashion, the individual was the ultimate judge of truth and the source of all legitimate authority, the Jewish group (or any other, for that matter) could not be given its proper due.

To a philosopher, theories of ideas—Descartesean, Lockean, Humean, and so forth—are the subject of intense and unresolved debate.