The relation of virtues with each other is among the controversial issues about virtues that was firstly dealt with by Socrates and Plato and they proposed the theory of uniqueness of virtue. Aristotle did not accept this theory and divided virtues into two rational and ethical groups. He has mostly dealt with ethical virtue and has provided no clear response to this question that what relation is between rational and ethical virtues. Farabi and Zagzebeski do not accept the theory of uniqueness of virtue and they believe that rational virtues are different from ethical ones. In response to the relation between virtues, Farabi and Zagzebeski have proposed priority and posteriority, and subset theories respectively. The analysis that Farabi and Zagzebeski propose from the relation between virtues is finally another version of uniqueness of virtues.