Agostino d'Ippona: Frasi in inglese (pagina 8)

Origine: Dictionary of Burning Words of Brilliant Writers (1895), p. 433

This is sometimes attributed to Augustine, but the earliest known occurrence is in Persian Rosary (c. 1929) by Ahmad Sohrab (PDF) http://magshare.net/narchive/NArchive/Misc/Raw_Data/A_Persian_Rosary_by_Mirza_Ahmad_Sohrab.pdf, which probably originates as a paraphrase of a statement in Oscar Wilde's 1893 play A Woman of No Importance: "The only difference between the saint and the sinner is that every saint has a past and every sinner has a future."
Misattributed

Ps. 30:19
Origine: On the Mystical Body of Christ, p.425

Tractates on the Gospel of John; tractate XXIX on John 7:14-18, §6 A Select Library of the Nicene And Post-Nicene Fathers of the Christian Church Volume VII by St. Augustine, chapter VII (1888) as translated by Philip Schaff http://www.ccel.org/ccel/schaff/npnf107.iii.xxx.html.
Compare: Anselm of Canterbury: "Nor do I seek to understand that I may believe, but I believe that I may understand".

Origine: On the Mystical Body of Christ, p.423

Attributed to Augustine in "Select Proverbs of All Nations" (1824) by "Thomas Fielding" (John Wade), p. 216 http://www.archive.org/details/selectproverbsa00wadegoog, and later in the form "The World is a book, and those who do not travel read only a page", as quoted in 20,000 Quips & Quotes (1995) by Evan Esar, p. 822; this has not been located in Augustine's writings, and may be a variant translation of an expression found in Le Cosmopolite (1753) by Fougeret de Monbron: "The universe is a sort of book, whose first page one has read when one has seen only one's own country."
Misattributed

Tractatus VII, 8 http://www.newadvent.org/fathers/170207.htm
Latin: "dilige et quod vis fac."; falsely often: "ama et fac quod vis."
Translation by Professor Joseph Fletcher: Love and then what you will, do.
In epistolam Ioannis ad Parthos

Earliest attribution found in Who Said That?: More than 2,500 Usable Quotes and Illustrations https://books.google.nl/books?id=7mn8AwAAQBAJ&pg=PT63 (1995) by George Sweeting. Online sources always attribute the quote to Augustine, but never specify in which of his works it is to be found.
Disputed

169
Sermons

61:13
Alternate versions:
Give then to the poor; I beg, I advise, I charge, I command you.
Sermon 11:13 on the New Testament http://www.newadvent.org/fathers/160311.htm http://books.google.com/books?as_q=&hl=en&num=10&as_epq=I+beg,+I+advise,+I+charge,+I+command+you.&as_oq=&as_eq=&lr=&cr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=&as_rights=&safe=images&um=1&ie=UTF-8&sa=N&tab=wp
Therefore, give to the poor. I beg you, I admonish you, I charge you, I command you to give.
Sermon 61:13, On Almsgiving, The Fathers Of The Church: A New Translation. Saint Augustine Commentary On The Lord’s Sermon On The Mount With Seventeen Related Sermons http://www.archive.org/details/fathersofthechur027834mbp, (1951), Ludwig Schopp, Roy Joseph Deferrari, vol. 11/3, p. 286
Sermons

First Homily, as translated by John Burnaby (1955), p. 266
Ten Homilies on the First Epistle of John (414)

First Homily, as translated by John Burnaby (1955), p. 267
Ten Homilies on the First Epistle of John (414)

348/A:2
Sermons

Origine: On the Mystical Body of Christ, p.429

Origine: On the Mystical Body of Christ, p.428

As quoted in Spirituality and Liberation: Overcoming the Great Fallacy (1988) by Robert McAfee Brown, p. 136
Disputed

Jas 2:19
183:13:2
Sermons

On the Mystical Body of Christ

First Homily, as translated by John Burnaby (1955), p. 262
Ten Homilies on the First Epistle of John (414)