In A Treatise on Grace and Free Will we see Augustine laid some of the major foundations of the Reformation of the sixteenth century.

Comments from this and similar productions of Augustine's pen appear often in the writings of John Calvin; and many other Reformers are known to have tasted of the teaching of God's sovereign grace in the works of Augustine (as can be seen in their numerous quotations from his writings in their books, letters and tracts).

This is one of Augustine's anti-Pelagian works and includes an extract from Augustine's "Retractions" regarding "De Gratia et Libero Arbitrio."