There is no saint without a past, no sinner without a future.
You don't love in your enemies what they are, but what you would have them become by your prayers.
This very moment I may, if I desire, become the friend of God.
What do you possess if you possess not God?
The peace of the celestial city is the perfectly ordered and harmonious enjoyment of God, and of one another in God. (City of God, Book 19)
God has no need of your money, but the poor have. You give it to the poor, and God receives it.