Bonus question:
Here is a celebrated example of metaphysics based on Plato's beard.  It was invented by St. Anselm, a platonistically oriented medieval theologian.  In particular, it can be formulated in the platonistic framework Quine attributes to Wyman.  How might Russell and Quine object to the argument?  (Hint: try and fail  tocarry out the argument in a Quinean language that attributes existence only to actual things).  

1. If two possible things are the same except for actuality, the actual one is greater (e.g., actual hamburgers taste much better than possible ones).
2. If a possible thing is not actual, then there is a possible thing that differs from it only by being actual (This is a second-level Plato's beard!).
   
3. Among possible things, there is a greatest possible thing and by definition, it is unique.  
4. If the greatest possible thing were not actual, then the thing that differs from it only in being actual would be greater.  Contradiction.
5. So the greatest possible thing is actual.  
6. So God exists.