Yes they are very different things, but they don't contradict [1] most of the time. According to legal theory of positivism [2] what is written rule is a set of

Yes they are very different things, but they don't contradict [1] most of the time. According to legal theory of positivism [2] what is written rule is a set of validated moral laws. And indeed, as I said my way of thinking gives me huge library that suggest me what to do and what is good and what is bad. Most importantly I think that human beings ( and animals in that matter ) have really big spectrum of emotions that we carry over thousands of years that are not here today, because we need to fight them. Fear can save your life sometimes ; Anger ( adrenalin ) can make you a better fighter in time of trouble ; Jealousy sometimes give motivation of doing good deeds ; etc. If the results of those emotional decisions are not regulated by law and only by moral ( of your cultural ancestors, family, education, etc. ) then I really think it's up to me to decide, otherwise we will all be copies of the moral we inherited and there will be no change at all 1 : http://www.law.harvard.edu/faculty/shavell/pdf/4_Amer_Law_Econ_Rev_227.pdf http://www.law.harvard.edu/faculty/shavell/pdf/4_Amer_Law_Ec... 2 : http://www.iep.utm.edu/legalpos/ http://www.iep.utm.edu/legalpos/