tice, as stated above (A. 2) directs man in his
relations with other men. Now this may happen in two ways: first as
regards his relation with individuals, secondly as regards his
relations with others in general, in so far as a man who serves a
community, serves all those who are included in that community.
Accordingly justice in its proper acceptation can be directed to
another in both these senses. Now it is evident that all who are
included in a community, stand in relation to that community as parts
to a whole; while a part, as such, belongs to a whole, so that
whatever is the good of a part can be directed to the good of the
whole. It follows therefore that the good of any virtue, whether such
virtue direct man in relation to himself, or in relation to certain
other individual persons, is referable to the common good, to which
justice directs: so that all acts of virtue can pertain to justice,
in so far as it directs man to the common good. It is in this sense
that justice is called a general virtue. And since it belongs to the
law to direct to the common good, as stated above (I-II, Q. 90, A.
2), it follows that the justice which is in this way styled general,
is called "legal justice," because thereby man is in harmony with the
law which directs the acts of all the virtues to the common good.

Reply Obj. 1: Justice is specified or enumerated with the other
virtues, not as a general but as a special virtue, as we shall state
further on (AA. 7, 12).

Reply Obj. 2: Temperance and fortitude are in the sensitive appetite,
viz. in the concupiscible and irascible. Now these powers are
appetitive of certain particular goods, even as the senses are
cognitive of particulars. On the other hand justice is in the
intellective appetite as its subject, which can have the universal
good as its object, knowledge whereof belongs to the intellect. Hence
justice can be a general virtue rather than temperance or fortitude.

Reply Obj. 3: Things referable to oneself are referable to
another, especially in regard to the common good. Wherefore legal
justice, in so far as it directs to the common good, may be called a
general virtue: and in like manner injustice may be called a general
sin; hence it is written (1 John 3:4) that all "sin is iniquity."
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SIXTH ARTICLE [II-II, Q. 58, Art. 6]

Whether Justice, As a General Virtue, Is Essentially the Same As All
Virtue?

Objection 1: It would seem that justice,