But every one loves another with natural love for his own sake: because one thing loves another as good for itself.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic love good
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17611/pg17611-images.html

Context

“Now the Divine nature is far above the angelic nature. Therefore, according to natural love, the angel loves God less than self, or even than another angel. Obj. 2: Further, "That on account of which a thing is such, is yet more so." But every one loves another with natural love for his own sake: because one thing loves another as good for itself. Therefore the angel does not love God more than self with natural love. Obj. 3: Further, nature is self-centered in its operation; for we behold every agent acting naturally for its own preservation.” source