Whether ignorance can be a cause of sin?

❌ Objection 1 : It would seem that ignorance cannot be a cause of sin: because a non-being is not the cause of anything. Now ignorance is a non-being, since it is a privation of knowledge. Therefore ignorance is not a cause of sin.

❌ Objection 2 : Further, causes of sin should be reckoned in respect of sin being a "turning to" something, as was stated above (Question [75], Article [1]). Now ignorance seems to savor of "turning away" from something. Therefore it should not be reckoned a cause of sin.

❌ Objection 3 : Further, every sin is seated in the will. Now the will does not turn to that which is not known, because its object is the good apprehended. Therefore ignorance cannot be a cause of sin.