"On Your exceedingly great mercy, and on that alone, rests all my hope."
"Faith is to believe what we do not see; and the reward of this faith is to see what we believe."
"God had one Son on earth without sin, but never one without suffering."
"There is no saint without a past, no sinner without a future."
"To fall in love with God is the greatest romance; to seek him the greatest adventure; to find him, the greatest human achievement."
"Thou hast made us for Thyself, O Lord, and our heart is restless until it finds its rest in Thee."
"God has promised forgiveness to your repentance, but He has not promised tomorrow to your procrastination."
"God loves each of us as if there were only one of us."
"Late have I loved You, O Beauty ever ancient, ever new, late have I loved You! You were within me, but I was outside, and it was there that I searched for You. In my unloveliness I plunged into the lovely things which You created. You were with me, but I was not with You. Created things kept me from You; yet if they had not been in You they would have not been at all. You called, You shouted, and You broke through my deafness. You flashed, You shone, and You dispelled my blindness. You breathed Your fragrance on me; I drew in breath and now I pant for You. I have tasted You, now I hunger and thirst for more. You touched me, and I burned for Your peace."
Go here for more on the life of St. Augustine.