The issue of evaluating of piety is an important subject in societies which have religious culture and religion are individuals in society is effective factor , in such societies judgment and measurement of religion are considered important extent that can be other criteria under the influence. In this paradigm evaluating of piety Considered an objective and all the efforts made to provide precise criteria for it, the standards in general, the two groups can be divided: the religion criteria and the science criteria. The religious criteria are the text of the religion and with regard to the religious teachings have been submitted. The pivotal question is whether it is an assessment of piety is basically a subjective issue, or an objective issue , in plain do really can be with regard to the some criteria, judge others piety or basically it is an internal matter and merely individual that can be judged on his piety? At first we will try to answer to this question in Islamic culture which regard to the teachings of Islam, then we survey a description of the Loudvik Vitgenshtine in this regard, with the comparative discussion.