St. Olaf College: Nate Olson's "Perspectivism and Truth in Nietzsche's Philosophy: A Critical Look at the Apparent Contradiction"

Read this article. Consider the following questions: What is the apparent contradiction referred to by Olson? Do you think Olson is correct and/or justified in this argument?

Click http://web.archive.org/web/20080314183852/http://www.stolaf.edu/depts/philosophy/reed/2001/perspectivism.html link to open resource.