"Perspective truth" - quote from "Reason and Intuition"

"Now we can understand why there are only perspectives of truth (as propounded by Nietzsche). Each person’s truth will be constrained by his empirical experience and hence his belief systems. And it is his empirical experience and belief systems that will determine his use of reason. It is his empirical experience and belief systems that will determine whether his reason is exercised safely within an acceptable ideology, or whether he has the courage to think the impossible."

Reason and Intuition