The rewrite of the Principles and Purposes has launched anew the complaints that some UUs treat the PPs as if they were a creed. Of course they do; the PPs are a creed. The Unitarian Universalist faith is not, never has been, and cannot be a "creedless religion"; it is disingenuous to claim that it is. Or, for that matter, that a creedless religion can exist at all.
What is a creed? The dictionary on my desk says, "a set of fundamental beliefs ; also : a guiding principle". The PPs fit both halves of that definition; they are beliefs, not facts. We acknowledge that with our language; one doesn't covenant or affirm a fact, one recognizes or becomes aware of it. I don't believe, covenant, or honor that the Sun rises in the morning; I recognize the fact that it does. That being the case, I do not feel the need to add that the Sun rises to my credo. Nor do I fellowship for the purpose of recognizing known facts.
We covenant to honor and uphold concepts such as "dignity and worth" and "right of conscience" precisely because they are not provable facts. We believe that these behaviors will bring the greatest good to the greatest number; we cannot prove them. For that matter, that the greater good should be sought by the individual is an unprovable belief. Even the subordinate clauses and sentences used to explain the beliefs are themselves beliefs.
I know many UUs are allergic the the very words "belief" and "creed", and I can imagine why; they've been hurt by too-rigid creeds in the churches of their youth. Others say they are rationalists; they deal only in facts. But religions deal in truths, not facts. Truths are shared beliefs about the meaning of the facts; the fact itself simply is. If we share a list of such beliefs, they are a creed. If we don't, why do we fellowship at all? Take care in drawing up such a document, yes. Make it as inclusive as possible, certainly. Or drop it entirely if we cannot agree. But to have a creed and pretend it is not one is simply dishonest. And yes, that is a belief.