QUESTION 77

OF THE CAUSE OF SIN, ON THE PART OF THE SENSITIVE APPETITE

(In Eight Articles)

We must now consider the cause of sin, on the part of the sensitive

appetite, as to whether a passion of the soul may be a cause of sin:

and under this head there are eight points of inquiry:

(1) Whether a passion of the sensitive appetite can move or incline

the will?

(2) Whether it can overcome the reason against the latter's knowledge?

(3) Whether a sin resulting from a passion is a sin of weakness?

(4) Whether the passion of self-love is the cause of every sin?

(5) Of three causes mentioned in 1 John 2:16: "Concupiscence of the

eyes, Concupiscence of the flesh," and "Pride of life."

(6) Whether the passion which causes a sin diminishes it?

(7) Whether passion excuses from sin altogether?

(8) Whether a sin committed through passion can be mortal?

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Summa Theologica, Part I-II (Pars Prima Secundae) From the Complete American Edition · 第 504 / 746 题