Our intellect is reduced to act, in a fashion, by the consideration of speculative sciences, but not to its final and perfect act.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic science fashion
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

“In his book on Ethics the Philosopher treats of imperfect happiness, such as can be had in this life, as stated above (A. 2, ad 4) . Reply Obj. 2: Not only is perfect happiness naturally desired, but also any likeness or participation thereof. Reply Obj. 3: Our intellect is reduced to act, in a fashion, by the consideration of speculative sciences, but not to its final and perfect act. ________________________ SEVENTH ARTICLE [I-II, Q. 3, Art. 7] Whether Happiness Consists in the Knowledge of Separate Substances, Namely, Angels? Objection 1: It would seem that man's happiness consists in the knowledge of separate substances, namely, angels.” source