You Have Nothing Apart from the Author of Life

He is eternal wisdom, eternal truth, eternal goodness, eternal justice, He is, in short, the eternal light of all virtues, and all that is virtue is God.  Unless He works in us, we cannot be partakers of any virtue.  For indeed without this Good nothing is good, without this Light nothing is bright, without this Wisdom, nothing is wise, without this Justice nothing is right.  For the Lord says through the mouth of Isaiah, I am, I am, the Lord, and there is no one besides me who saves;* and Jeremiah says, I know, O Lord, that the way of a man is not in himself; neither is it in a man to direct his steps.†

Prosper of Aquitaine, The Call of All Nations 1.8

*  Isaiah 43:11
†  Jeremiah 10:23