http://reply.papertrans.cn/3/204/20302/20302-11.png
http://reply.papertrans.cn/3/204/20302/20302-12.png
http://reply.papertrans.cn/3/204/20302/20302-13.png
http://reply.papertrans.cn/3/204/20302/20302-14.png
Submitted on: 05 August 2003.
Revised on: 15 September 2003.
Accepted on: 29 September 2003.
KENNEDY INSTITUTE OF ETHICS JOURNAL
http://reply.papertrans.cn/3/204/20302/20302-16.png
http://reply.papertrans.cn/3/204/20302/20302-17.png
http://reply.papertrans.cn/3/204/20302/20302-18.png
http://reply.papertrans.cn/3/204/20302/20302-19.png
http://reply.papertrans.cn/3/204/20302/20302-20.png