St. Augustine had a big impact on how people think about Christianity, but he also faced many challenges:

• Intellectual Opposition: Some of his ideas did not match well with the popular beliefs of his time.
• Moral Ambiguities: Augustine talked about sin and grace in ways that made believers think hard about what it all meant.
• Political Turmoil: As Christianity grew, it was caught up in fights and disagreements with the government and other beliefs.

To address these problems, Augustine believed that using faith along with reason could help people have better conversations. This approach can lead to a deeper understanding of Christian teachings and how they fit with other philosophical ideas.