[mjp]

For such liberals, the age-old quest for “what is truth” has been abandoned or become a foolish and fruitless exercise where “relativism” rules the day.

Since the Kantian anti-identity approach more and more skeptics believe that the senses are invalid and that reason is not a means to truth about reality. This approach implies that man is blind, because he has eyes - deaf, because he has ears - deluded, because he has a mind - that the things that he perceives do not exist, because he perceives them

[DWW1990]

In other words, more gobbledygook from the stooges of the Enemy. They fear honest reasoning because of where it leads.