Augustine theological work highly influenced western Christianity and he is said to be one of the most influential theologists in Roman Empire. In his theological career, he extensively campaigned against two philosophies in particular. First it was Manichaeism which was a philosophy that claimed that evil and good are the two transcendent forces which are the results of human behaviors. Augustine ruled out the part of evil and he argued that every thing that is created by God is good. In this regard, he argued that evil is not a transcendent created by God hence cannot exist on its own right. Basing on this, he argued that world can be explained from a point of view that every thing is created by only one good creator hence evil is a creation of human nature. Secondly, was philosophy of palegianism which stressed the man’s capacity of achieving righteousness by himself without divine intervention. He contested this and argued that righteousness is given by God. Among his philosophical works he wrote about friendship in Christian perspective. As a theologist, he differed with other philosophers at some point on true friendship. He was categorical that, only that friendship that comes from God is valid. He derived his argument both from philosophical and religious perspective.