倫理

wikipedia:倫理

http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1114108661
http://en.wiktionary.org/wiki/%e1%bc%a6%ce%b8%ce%bf%cf%82
http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0057:entry=H%29%3DQOS