God performs everything in us, but does it with and through us. It is his grace when I do what I should and do not what I should not; when I endure difficulties, resist temptation, believe and hope in God’s presence even when I don’t feel it. He invites my cooperation, he does not regularly transform me or my circumstances until I ask for it, until I lay my heart open before him and admit my present weakness and awkwardness.
A paraphrase from Francois Fénélon.
http://www.iinet.com/~passtheword/DIALOGS-FROM-THE-PAST/innerlife.htm (to find the passage I'm paraphrasing, do a search for "grace" on that page.