er, sin is in the intellectual faculty. But sin involves falsehood: for "those err that work evil" ( Prov. 14:22 ). Therefore falsehood can be in the intellect. On the contrary, Augustine says (QQ. 83, qu. 32), that "everyone who is deceived, does not rightly understand that wher…

ance does not cause involuntariness. Objection 2: Further, every sin implies ignorance; according to Prov. 14: 22 : "They err, that work evil." If, therefore, ignorance causes involuntariness, it would follow that every sin is involuntary: which is opposed to the saying of August…

would never tend to evil, unless there were ignorance or error in the reason. Hence it is written ( Prov. 14:22 ): "They err that work evil." Experience, however, shows that many act contrary to the knowledge that they have, and this is confirmed by Divine authority, according to…