In last month’s post, we argued that value pluralism is the view that there are objective and heterogeneous goods, goods that are distinct and irreducible. To hold that there are distinct and irreducible goods is to hold that there is no summum bonum, no ultimate good that explains the goodness of all other goods. It also is to hold that there is no master good against which to measure the value of the other goods. According to the value pluralist, then, there is at least one pair of objective goods, A and B, such that A is neither better than B, worse than B, nor equal in value to B. This is to say that, according to value pluralism, some goods are incommensurable with other goods. Value pluralism thus is the three-pronged thesis that (1) there is a plurality of objective goods, (2) of these goods, some are irreducible to any other good, and (3) these irreducible goods are incommensurable with other irreducible goods. That’s pluralism in a nutshell. Pluralism about anything comes to this tripartite thesis, mutatis mutandis.
When presented in this way, value pluralism may seem an esoteric view. The meager degree of precision introduced above suffices to dampen the halo effect of the term. Now the term no longer seems like a catch-all for a collection of virtues or term of approval for a moral disposition. Rather, what we have with value pluralism is a philosophical thesis about the nature of value.
We will not attempt here to determine whether value pluralism is true. Instead we seek to defeat a consideration commonly offered in support of value pluralism. Consistent with its status as a paradigmatic halo term, advocates of value pluralism often claim that their view is uniquely positioned to supply philosophical backup for a politics of inclusion, toleration, open-mindedness, diversity, and difference. In fact, the father of value pluralism, Isaiah Berlin, went further than this in his famous essay on “Two Concepts of Liberty.” Berlin held not only that value pluralism entails a politics of toleration and individual liberty, he also claimed that value monism – the view that all good things are good in virtue of sharing some single property – fosters intolerance, tyranny, and despotism.