If our aim is the objective truth, we can have a motivation and a reason for revising our epistemic norms whenever we have reason to think they aren't helping us optimally to reach that goal, and we can have a sounds basis for criticizing others' claims that we should adhere to the norms. But how can we have any of these things if the truth just is whatever follows from our epistemic norms?

p. 131 - Challenging Postmodernism (2003)