In an enormous variety of distinct fields of inquiry the same general pattern is becoming clear: there is no such thing as "right," the very concept needs to be replaced with "progressively less wrong." The difference is far from semantic. "Right" is measured by proximity to some fixed idea, "progressively less wrong" by how far people have gotten from where they started. It is the aspiration to be "right" that leads to rigid hierarchical social organizations of all kinds, including educational systems. Wanting to be "progressively less wrong" takes one (and societies) in quite different directions entirely: it encourages life-long inquiry by every individual, a respect for past wisdom and enthusiasm for contributing to future understanding, and an appreciation of the enormous value of interactions between unique individuals each of whom has unique perspectives to contribute.
Paul Grobstein. 1993. Letter to John Bemis, one of the delights stored at the Serendip site.