The various kinds of things made by art are all external to man
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic art
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

“whereas it is more contrary to prudence to sin willingly than unwillingly, since rectitude of the will is essential to prudence, but not to art. Accordingly it is evident that prudence is a virtue distinct from art. Reply Obj. 1: The various kinds of things made by art are all external to man: hence they do not cause a different kind of virtue. But prudence is right reason about human acts themselves: hence it is a distinct kind of virtue, as stated above. Reply Obj. 2: Prudence has more in common with art than a speculative habit has, if we consider their subject and matter:” source