subjects; it must distribute burdens, honours, and rewards equitably without showing favour to particular classes and persons; not indeed with absolute arithmetical equality all round, but according to respective merits. The virtue which should regulate the distribution of burdens and rewards among its subjects by the State is called distributive justice. To such as have committed crime and injured the common weal the State metes out condign punishment according as vindictive justice demands.
There is a difference of opinion among Catholic writers as to whether legal, distributive, and vindictive justice, which we have grouped together under the name of social justice, are really subordinate species of the virtue, or whether commutative justice is the only species that may in strictness be so called. Whatever view be taken we must allow that in commutative justice alone is there a perfect distinction between debtor and creditor; it alone observes arithmetical equality in satisfying its obligations; it alone binds to restitution after being violated. In social justice, on the contrary, there is no perfect distinction between the State and its subjects; social justice does not prescribe the observance of arithmetical equality, nor does its violation bind to restitution, except when by the same act commutative justice has also been infringed.
3. That which in justice is due to me is my right, as it is called. I have a right to my life, to my good name, to my property; and anyone who deprives me of these rights is .guilty of injustice. Rights, then, are the subject-matter of justice, and in this, its strict sense, a right may be defined as a moral power of having, doing, or exacting something.
It is said to be a moral power to distinguish it from the mere physical capacity of brute force, which confers no rights of itself. It is a moral power which may not without injustice be interfered with. It is the power of having and possessing as one's own something which man values and which serves his convenience and wants; or of doing something, of giving scope to his bodily or mental activity; or of exacting some service as due to him from another.
A right is in re or ad rem. A right in re is a right which one has to something determined and already his own. In order that one may have a right in re the object must already exist; it must not be merely possible or future; it must be determined and separate; it must belong to the person by a title of justice so that it is his. If one of these conditions is wanting but
