THIRD ARTICLE [I-II, Q. 78, Art. 3]

Whether One Who Sins Through Certain Malice, Sins Through Habit?

Objection 1: It would seem that whoever sins through certain malice,

sins through habit. For the Philosopher says (Ethic. v, 9) that "an

unjust action is not done as an unjust man does it," i.e. through

choice, "unless it be done through habit." Now to sin through certain

malice is to sin through making a choice of evil, as stated above (A.

1). Therefore no one sins through certain malice, unless he has the

habit of sin.

Obj. 2: Further, Origen says (Peri Archon iii) that "a man is not

suddenly ruined and lost, but must needs fall away little by little."

But the greatest fall seems to be that of the man who sins through

certain malice. Therefore a man comes to sin through certain malice,

not from the outset, but from inveterate custom, which may engender a

habit.

Obj. 3: Further, whenever a man sins through certain malice, his will

must needs be inclined of itself to the evil he chooses. But by the

nature of that power man is inclined, not to evil but to good.

Therefore if he chooses evil, this must be due to something

supervening, which is passion or habit. Now when a man sins through

passion, he sins not through certain malice, but through weakness, as

stated (Q. 77, A. 3). Therefore whenever anyone sins through certain

malice, he sins through habit.

_On the contrary,_ The good habit stands in the same relation to the

choice of something good, as the bad habit to the choice of something

evil. But it happens sometimes that a man, without having the habit

of a virtue, chooses that which is good according to that virtue.

Therefore sometimes also a man, without having the habit of a vice,

may choose evil, which is to sin through certain malice.

_I answer that,_ The will is related differently to good and to evil.

Because from the very nature of the power, it is inclined to the

rational good, as its proper object; wherefore every sin is said to

be contrary to nature. Hence, if a will be inclined, by its choice,

to some evil, this must be occasioned by something else. Sometimes,

in fact, this is occasioned through some defect in the reason, as

when anyone sins through ignorance; and sometimes this arises through

the impulse of the sensitive appetite, as when anyone sins through

passion. Yet neither of these amounts to a sin through certain

malice; for then alone does anyone sin through certain malice, when

his will is moved to evil of its own accord. This may happen in two

ways. First, through his having a corrupt disposition inclining him

to evil, so that, in respect of that disposition, some evil is, as it

were, suitable and similar to him; and to this thing, by reason of

its suitableness, the will tends, as to something good, because

everything tends, of its own accord, to that which is suitable to it.

Moreover this corrupt disposition is either a habit acquired by

custom, or a sickly condition on the part of the body, as in the case

of a man who is naturally inclined to certain sins, by reason of some

natural corruption in himself. Secondly, the will, of its own accord,

may tend to an evil, through the removal of some obstacle: for

instance, if a man be prevented from sinning, not through sin being

in itself displeasing to him, but through hope of eternal life, or

fear of hell, if hope give place to despair, or fear to presumption,

he will end in sinning through certain malice, being freed from the

bridle, as it were.

It is evident, therefore, that sin committed through certain malice,

always presupposes some inordinateness in man, which, however, is not

always a habit: so that it does not follow of necessity, if a man

sins through certain malice, that he sins through habit.

Reply Obj. 1: To do an action as an unjust man does, may be not only

to do unjust things through certain malice, but also to do them with

pleasure, and without any notable resistance on the part of reason,

and this occurs only in one who has a habit.

Reply Obj. 2: It is true that a man does not fall suddenly into sin

from certain malice, and that something is presupposed; but this

something is not always a habit, as stated above.

Reply Obj. 3: That which inclines the will to evil, is not always a

habit or a passion, but at times is something else. Moreover, there

is no comparison between choosing good and choosing evil: because

evil is never without some good of nature, whereas good can be

perfect without the evil of fault.

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Summa Theologica, Part I-II (Pars Prima Secundae) From the Complete American Edition · 第 516 / 746 题