Furthermore, on some of the most important aspects of our lives, which is how we ought to live (i.e. matters pertaining to values and not facts), we do not have

Furthermore, on some of the most important aspects of our lives, which is how we ought to live (i.e. matters pertaining to values and not facts), we do not have any way to determine the "truth", objectively. In my view "truth" is not even a well defined concept for anything not pertaining to fact. And politics, by it's very nature, is not restricted to the realm of facts. If it was it would be science and not politics. Politics is about applying values to facts. EDIT: This concept is fairly well explained by Karl Popper in his book, The Open Society and Its enemies. In Chapter 5, Nature and Convention [1] which is worth a read if this is hard to grasp. quoted> It is important for the understanding of this attitude to realize that these decisions can never be derived from facts (or from statements of facts), although they pertain to facts. The decision, for instance, to oppose slavery does not depend upon the fact that all men are born free and equal, and that no man is born in chains. For even if all were born free, some men might perhaps try to put others in chains, and they may even believe that they ought to put them in chains. And conversely, even if men were born in chains, many of us might demand the removal of these chains. Or to put this matter more precisely, if we consider a fact as alterable—such as the fact that many people are suffering from diseases—then we can always adopt a number of different attitudes towards this fact: more especially, we can decide to make an attempt to alter it; or we can decide to resist any such attempt; or we can decide not to take action at all. All moral decisions pertain in this way to some fact or other, especially to some fact of social life, and all (alterable) facts of social life can give rise to many different decisions. Which shows that the decisions can never be derivable from these facts, or from a description of these facts. [1]: https://pastebin.com/xHDkUypF https://pastebin.com/xHDkUypF