Objection 1: It would seem that good and evil in moral actions do not make a difference of species.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic action evil
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

“However, an action is not good simply, unless it is good in all those ways: since "evil results from any single defect, but good from the complete cause," as Dionysius says (Div. Nom. iv) . ________________________
FIFTH ARTICLE [I-II, Q. 18, Art. 5]
Whether a Human Action Is Good or Evil in Its Species?
Objection 1: It would seem that good and evil in moral actions do not make a difference of species. For the existence of good and evil in actions is in conformity with their existence in things, as stated above (A. 1). But good and evil do not make a specific difference in things; for a good man is specifically the same as a bad man.” source