Early Church Fathers Quotes by Topic

People sometimes say that the Early Church Fathers taught the same thing as the Roman Catholic Church (even the Easter Orthodox Church) does today, and that Protestant interpretations of Scripture such as sola scriptura, salvation by grace alone, etc., didn't appear until recently.  But, that isn't true.  In fact, you can find quotes from the Early Church Fathers on all sides of the same topics.

Quotes of Early Church Fathers by Topic