Even to blame evil is sinful, if due circumstances be not observed
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic evil blame
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

“But it would be sinful to wish to please men for the sake of vainglory or gain, or to please them in something evil, according to Ps. 52:6, "God hath scattered the bones of them that please men," and according to the words of the Apostle (Gal. 1:10) , "If I yet pleased men, I should not be the servant of Christ." Reply Obj. 2: Even to blame evil is sinful, if due circumstances be not observed; and so too is it to praise good. Reply Obj. 3: Nothing hinders two vices being contrary to one another. Wherefore even as detraction is evil, so is flattery, which is contrary thereto as regards what is said, but not directly as regards the end.” source