Student or Learner
Does property here refer to essential attribute?
The eighteenth-century Scottish philosopher David Hume famously argued that
no description of the way the world is (facts) can tell us how we ought to behave
(morality).13 Following Hume, the philosopher G. E. Moore declared that any attempt to locate moral truths in the natural world was to commit a “naturalistic fallacy.” 14 Moore argued that goodness could not be equated with any property of human experience (e.g.,pleasure, happiness, evolutionary fitness) because it would always be appropriate to ask whether the property on offer was itself good. If, for instance, we were to say that goodness is synonymous with whatever gives people pleasure, it would still be possible to worry whether a specific instance of pleasure is actually good.
Yes. Or you could say characteristic or facet or aspect.
I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.