Reply Obj. 1: Virtue moderates little things, according to the rule of reason: from which rule the mean man declines, as stated in the Article.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic virtue reason
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

“Therefore it is evident that the mean man fails to observe the proportion that reason demands between expenditure and work. Now the essence of vice is that it consists in failing to do what is in accordance with reason. Hence it is manifest that meanness is a vice.
Reply Obj. 1: Virtue moderates little things, according to the rule of reason: from which rule the mean man declines, as stated in the Article. For he is called mean, not for moderating little things, but for declining from the rule of reason in moderating great or little things: hence meanness is a vice.
Reply Obj. 2: As the Philosopher says (Rhet. ii, 5) , "fear makes us take counsel": wherefore a mean man is careful in his reckonings, because he has an inordinate fear of spending his goods, even in things of the least account.” source