The Platonic approach or the Protagorean approach?by Naomi Goulder / December 6, 2016 / Leave a comment
From Brexit to Donald Trump, dramatic political events over the last few months have shaken confidence in and prompted widespread debate about our democratic processes. Our attitudes often affect the realities they seek to represent—some to self-fulfilling, others self-undermining, effect. Sometimes the only way to leap a hurdle is to convince oneself that one will succeed. Descartes, in his Meditations, suggests that thinking you don’t exist might somehow ensure that you do.
There are two opposing traditions on the nature of justice: a Platonic one according to which facts about justice are independent of what we think about them, and a Protagorean one according to which the facts are ultimately constructed. For Plato, knowing requirements of justice is a matter of receptivity to an independent ethical reality. For Protagoras, who said “man is the measure of all things,” knowing requirements of justice is a matter of active human creation—akin to the practical knowledge we have when, on being asked for the name of a ship, we break a bottle of champagne over its bow announcing “We hereby name this ship [X]!”