I
find Rawls confusing on this issue. He sometimes speaks as though he
is trying to find universal principles of justice. But after thinking
about it, I have decided that he isn't trying to do that.
First of all, as you pointed out, he explicitly renounces the idea
of deducing the principles of justice from an analysis of ethical
concepts.
More importantly, I think that if we look very closely at his idea
of the original position, what we find is that the
original position is intended to embody certain weak but widely accepted principles
found in American cultural history.
Although the original position sometimes looks as though it is an
abstraction created by Rawls' imagination, I don't think he sees
it that way. It is actually an abstraction based on certain notions of
justice that he thinks are found in our culture.
Rawls wants to formulate principles of justice that are fitted to a country like the United States. He isn't really trying to formulate
principles for everyone everywhere. Hence the original position is allowed to
embody certain assumptions that all or nearly all Americans make about
justice. In this sense, I think we could say that Rawls' two
principles are rooted in our culture. It's a loaded phrase, but maybe
we could say that his principles are "culturally relative."
I'm open to argument on this; but at this point, I think that is
what Rawls is saying.
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