Sometimes, indeed, patent vices are overcome by other and hidden vices, which are reckoned virtues, though pride and a kind of ruinous self-sufficiency are their informing principles. Accordingly vices are then only to be considered overcome when they are conquered by the love of God, which God Himself alone gives, and which He gives only through the Mediator between God and men, the man Christ Jesus, who became a partaker of our mortality that He might make us partakers of His divinity.
Augustine, City of God, Book 21, Chapter 16
