The word "Value" is used by philosophers in many different context, without definition. I have asked many schools of values for the definition that guides their activities and not received a single coherent reply. Can you help me?

At the turn of the last century, G.E. Moore famously argued that the word "good" can't be defined. Goodness, according to Moore, is simple and (hence) undefinable.The same might be true of the word "value" and its cognates. Of course, there are some definitions that promise to be relatively uncontroversial. We mightsay, for example, that something is valuable if, and only if, it is worth pursuing or promoting. Alternatively, we might say that something is valuable if, and only if, we have a reason to pursue or promote it. Both of these definitions are at least prima facie plausible, but they are also rather uninformative. By asserting that "xis valuable" means the same as "x is worth pursuing," we have merelysubstituted one phrase in need of definition for another. That is, the terms "worth" and "reason" seem to be just as mysterious asthe word they are supposed to replace: "valuable." This suggests that we need to look for a more substantive definition. Moore, however, claimed...