Quote by Carroll Quigley
The failure of Christianity in the areas west from Sicily was even greater, and was increased by the spread of Arab outlooks and influence to that area, and especially to Spain.
Summary
This quote suggests that Christianity faced significant challenges in its expansion west of Sicily, particularly in areas such as Spain. The failure of Christianity in these regions was exacerbated by the growing influence and outlooks of Arab cultures. The spread of Arab influence in these areas played a significant role in hindering the success of Christianity.