| ### QUESTION 80 OF THE CAUSE OF SIN, AS REGARDS THE DEVIL |

| ### Index |

| #### Prologue #### ARTICLE 1. Whether the devil is directly the cause of man's sinning? #### ARTICLE 2. Whether the devil can induce man to sin, by internal instigations? #### ARTICLE 3. Whether the devil can induce man to sin of necessity? #### ARTICLE 4. Whether all the sins of men are due to the devil's suggestion? |