Anger, when it has a cause, is not anger but judgment.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic anger judgment
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

“and thus without doubt lack of anger is a sin. This is the sense in which anger is taken in the saying of Chrysostom, for he says (Hom. xi in Matth., in the Opus Imperfectum, falsely ascribed to St. John Chrysostom) : "Anger, when it has a cause, is not anger but judgment. For anger, properly speaking, denotes a movement of passion": and when a man is angry with reason, his anger is no longer from passion: wherefore he is said to judge, not to be angry. In another way anger is taken for a movement of the sensitive appetite, which is with passion resulting from a bodily transmutation.” source