“…An increase the number of books and articles has been written about it in recent decades confirms this fact (e.g. Alvey, 1994Alvey, , 1996Alvey, , 1997Alvey, , 1998aAlvey, , 1998bAlvey, , 2001Alvey, , 2003aAlvey, , 2003bClarke, 2000Clarke, , 2002Fitzgibbons, 1995;Fitzgibbons, 1995;Fleischacker, 1991Fleischacker, , 1996Fleischacker, , 2004Haakonssen, 1981;Hill, 2001;Kleer, 2000;Lux, 1990;Rothschild, 2001;Skinner, 1996;Werhane, 2006;Winch, 1996).…”