The Chinese tradition's philosopher and the overwhelming majority western philosophers thought that the morals are containing altruism factor or to other people benefit consideration.as soon as [1] but talks about altruism,the people remember “are unselfish,are utterly devoted to others”,human who probably has the morals certainly must do “is unselfish,is utterly devoted to others”.This kind of moral claim to the normal peaceful environment's average person,its unfairness is obvious.Its result creates the moral education the low efficiency,even is invalid.On the other hand,because this kind of moral claim's unfairness causes part of people to think that the reasonable moral claim completely does not have altruism ingredient,or thought that “benefits him” (for example to represent overall benefit behavior) and “selfish” is the identical.[2] I thought that equates the moral request in “is unselfish,is utterly devoted to others”,or will represent the overall benefit the moral behavior to equate in the selfish behavior will be incorrect.The moral claim needs to emphasize the rationality.Must find this kind of kind of reasonable morals,we needed to discover its rational basic condition.This article planned that through to the decision theory in “the convict paradox” the question examination,discovers the moral rational essential condition and the sufficient condition,based on this and further proved that besides the legal system and the institutional construction,at the same time us also needs to carry on the content reasonably,the effective moral education,enhances all national's moral accomplishment,in turn,all national's moral accomplishment will also create the condition for the morality rationality,to lay the foundation.
