Good's defining feature is not some abstracted ambiguous quality extracted from similarities among commonly accepted examples neatly packaged for common consumption by authorities. It's defining feature is that we define it with time through our choices. Each of us, each moment. We choose. We make the evaluation, convert the potentiality of uncertainty into certainty through selection, and suffer the consequence. We are the declarative principle identifying metaphysical goodness in the ongoing phenomenon of time. Just because you are told good is something defined with words vaguely comprehended in the aether of your mind doesn't change the underlying principle of action. The principal of time and the direction of it's application is precisely how the disagreement between all nodes of mind about what is good is resolved with certainty and actuality.