for a wise man in any branch of knowledge is one who knows the highest cause of that kind of knowledge, and is able to judge of all matters by that cause: and a wise man "absolutely," is one who knows the cause which is absolutely highest, namely God.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic God cause
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

“Accordingly, since the word knowledge implies certitude of judgment as stated above (A. 1) , if this certitude of the judgment is derived from the highest cause, the knowledge has a special name, which is wisdom: for a wise man in any branch of knowledge is one who knows the highest cause of that kind of knowledge, and is able to judge of all matters by that cause: and a wise man "absolutely," is one who knows the cause which is absolutely highest, namely God. Hence the knowledge of Divine things is called "wisdom," while the knowledge of human things is called "knowledge," this being the common name denoting certitude of judgment, and appropriated to the judgment which is formed through second causes.” source