Obj. 4: Further, as man sins at times through inordinate love of self, so does he sometimes through inordinate love of his neighbor. Therefore self-love is not the cause of every sin.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic sin love
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17897/pg17897-images.html

Context

“3: Further, Augustine in commenting on Ps. 79:17, "Things set on fire and dug down," says that "every sin is due either to love arousing us to undue ardor or to fear inducing false humility." Therefore self-love is not the only cause of sin.
Obj. 4: Further, as man sins at times through inordinate love of self, so does he sometimes through inordinate love of his neighbor. Therefore self-love is not the cause of every sin. On the contrary, Augustine says (De Civ. Dei xiv, 28) that "self-love, amounting to contempt of God, builds up the city of Babylon." Now every sin makes man a citizen of Babylon. Therefore self-love is the cause of every sin.
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