"Reason is a whore, the greatest enemy that faith has"

Martin Luther's quote is a commentary on the relationship in between faith and reason. He is suggesting that factor is a "slut" due to the fact that it is undependable and can be easily swayed. Factor is a tool that can be used to support any argument, regardless of its truthfulness. Therefore, it can be utilized to undermine faith, which is based upon a belief in something that can not be proven. Reason is the best opponent of faith due to the fact that it can be used to challenge and even disprove faiths. Luther's quote is a suggestion that faith is not based upon factor, but on a belief in something that can not be proven. It is a tip that faith is not something that can be argued or discussed, however something that needs to be accepted on faith.