The Hayek/Bartley  passage on Keynes is, as Alan notes, willful   
mis-interpretation.  I just used Jerry Muller's *The Mind and the Market*   
as a supplement in my HET course. In an otherwise excellent book, there is   
a similarly outrageous mis-characterization of Keynes.  He says that   
Keynes was opposed to "deferred gratification" (and offers as evidence   
part of the passage critiquing the "purposeful man" in the essays   
("Economic Possibilities for our Grandchildren.")  But the purposeful man   
in the passage, as would be evident from a full quote, defers   
gratification perpetually, for heaven's sake!  
  
Kevin Quinn