Therefore man ought, out of charity, to love God, Who is the common good of all, more than himself: since happiness is in God as in the universal and fountain principle of all who are able to have a share of that happiness.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic happiness sharing
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/18755/pg18755-images.html

Context

“It may also be seen in civic virtues whereby sometimes the citizens suffer damage even to their own property and persons for the sake of the common good. Wherefore much more is this realized with regard to the friendship of charity which is based on the fellowship of the gifts of grace.
Therefore man ought, out of charity, to love God, Who is the common good of all, more than himself: since happiness is in God as in the universal and fountain principle of all who are able to have a share of that happiness. Reply Obj. 1: The Philosopher is speaking of friendly relations towards another person in whom the good, which is the object of friendship, resides in some restricted way; and not of friendly relations with another in whom the aforesaid good resides in totality.
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