Being a Christian is challenging and demanding. We have many biological, social, mental, and spiritual needs we all need to fulfill on a consistent basis. While going about our lives looking for fulfillment, whatever that means to each individual, it is important to take care not to hinder others in their own personal quests for comfort and meaning. This predicament begs the question: How should a Christian interact with the world? We have come to the basic conclusion that there are three general options: To withdraw, to conform, or to seek to change. St. Augustine and St. Thomas Aquinas have strong positions in regard to faith and reason, the political order, and knowledge, and I will analyze their theologies and relate them to this issue. I intend to show that a combination of the three options, with a preference of seeking to change the world, is the best option to a true Christian. When we use the term “The World” in this context, what we are referring to could be interpreted on a few different levels of understanding. I think the one that makes the most sense in relation to the question is reality on the level of social interaction. In other words, a reality established by a political order, culture, and each individual’s reaction to these forces. This means that we can reframe the question as follows: How should one interact with their society? On a level of daily life, this means anything from interaction with family, friends, co-workers, strangers, etc. On a broader level it determines how or if one participates in the political order, in the church, and in the community. First, the three options presented in response to the question of how one should interact with the world need to be analyzed and defined. The first option, to withdraw from the world around you, implies that one would withdraw from society completely, except from their most basic needs, in an effort to safeguard themselves from the corruption of the City of Man. This would mean they have little to no influence, and place little to no significance, on collective reality, and place a high value on their internal world. If an individual chooses to conform to the world, we can conclude that they value their faith and reason as secondary to functioning smoothly in the secular world. They place great weight on their culture and political order, to the point that they sometimes, indeed often, act in ways that violate their own personal law, in the belief that their social lives are separate from their spiritual lives. If an individual chooses to seek to change the world, it stands to reason that they place great value on both their implicit and explicit existence, and want to merge the two as much as possible. They see their faith and reason as the highest good, but believe that being a human means interacting with other people, much like the conformist. However, unlike the conformist, the person that seeks change desires to expand the City of God further i