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Abstract

Assistant Professor of Institute of Emam Khomeini and Islamic Revolution
The matter of civil philosophy is "Voluntary of Human" that depends on his wisdom and his freedom and its goal is making basic change in existence of human for attaining true prosperity and thus have origin in Human nature. It shows that etical concepts and propositions of connection between "is" and "ought" are under consideration and important. In this view "ought' is meaned "necessity" and "certainty" and this necessity is deductive
necessity. It means that on basic deductive necessity we say for reach to result "B" voluntary praxis "A" is necessary, it means ought acts thus in view point of actual philosophy propositions of justice for example: "justice is good" or "injustice is bad" and so on; bring up in form "ought equal necessity" beacuse its concepts are objective. So, on ontology, isn't a split between is and ought and both are real. Thus acts have inherent properly goodness or badness and Human understand it by his wisdom.