As to be one is better than to be united, so there is more oneness in love which is directed to self than in love which unites one to others.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic love oneness
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

“On the other hand, each loves self with the love of choice, in so far as from choice he wishes for something which will benefit himself. Reply Obj. 1: It is not under the same but under quite different aspects that an angel or a man loves self with natural and with elective love, as was observed above. Reply Obj. 2: As to be one is better than to be united, so there is more oneness in love which is directed to self than in love which unites one to others. Dionysius used the terms "uniting" and "binding" in order to show the derivation of love from self to things outside self; as uniting is derived from unity. Reply Obj. 3: As love is an action which remains within the agent, so also is it a movement which abides within the lover, but does not of necessity tend towards something else;” source