I'm sorry to say that,
umm, we do believe in the
a priori claim thingy. Allow me to explain!
The Catholic Church continues to cite the argument outlined by these Church Fathers, till this day, as an authoritative teaching, part of our received social doctrine (as recently as last year by Pope Francis). So a Catholic, like myself, is obliged to apply the moral principle inherent within it to our post-modern context. (
Don't me ask how Republican Catholics in the U.S, manage to reconcile this because I don't have the answer to that fathomless conundrum )
Actually, the teaching is not contingent upon the "
poor" in question having
any personal hand in the extraction, development, manufacture or labour required for the rich to accrue the superabundant wealth under discussion. It's about
access to resources and the basic necessities of life.
Obviously, the case of an indentured servant, slave or serf who reaps none or little tangible benefit from the land he/she has been compelled to work on is an even more urgent instance of social injustice...
but the principle put forward here is far more radical in scope, and I think you see that.
As you adroitly noted, a statement is being made to the effect that the indignant "
have an a priori claim on another's wealth" if it be in superabundance, beyond what is required for the maintenance of their own needs and station in life. This is because the Church's sacred tradition maintains that the right to private ownership and free commerce, while natural rights given by God to all people, are ultimately subordinate to the universal destination of goods, which precedes the apportioning and division of goods arising from the positive law (because it is God's law in nature itself).
See:
voluntaryist.com - Voluntaryism and Extreme Necessity
The attitude of the Catholic Church was best exemplified by St. Basil (c. 330-379) who asserted that those who had more than they needed really didn't own their extra wealth: The bread that you store up belongs to the hungry; the cloak that lies in your chest belongs to the naked; and the gold that you have hidden in the ground belongs to the poor. [5] This theme was elaborated during the later Middle Ages when the principle of extreme necessity became a common doctrine among medieval theologians and canon lawyers.
The principle stated that a person in extreme necessity may rightfully take the property of other people to sustain his life. This principle is the most radical formulation of the medieval belief that God had bestowed the earth upon all mankind for its sustenance. [6] This conclusion led to two co-ordinate positions:
[T]he first held that people in extreme necessity might rightfully take what they needed to survive, and that their taking such goods had nothing of the nature of theft; and the second, held that every person has the obligation to sustain the life of other people once his own needs have been met. [7]
Gratian's DECRETUM, a famous medieval tome compiled about 1140 AD, also expounded the view that the fruits of the earth belonged to all mankind. All things are common, that is, to be shared in time of necessity with those in want. ... [W]e should retain for ourselves only necessities and distribute what is left to our neighbors in need. [8]
Joannes Teutonicus (also known as John of Wildehausen , c. 1180-1252) was one of the first medieval theologians to discuss the principle of extreme necessity. Citing the DECRETUM, he interpreted the word common to mean shared in time of need: No one may call his own what is common, of which if man takes more than he needs, it is obtained by violence. [9] The decretist text did not deny the right to private property; rather it denied the right of anyone to appropriate as his own more than sufficed for his own needs. According to Joannes, a man was not bound to deprive himself of his own necessities in order to help another in need, though if he did so it would be a commendable act. He could even retain superfluities provided that others were not in want. But in time of necessity any superfluous wealth of an individual was to be regarded as common property, to be shared with those in need. [10]
The decretists saw no contradiction in maintaining the right to private property, on the one hand, and, on the other, the right of the poor to sustain their lives by taking from the wealthy. They recognized the right to private property, but the right of accumulation only extended as far as satisfying one's basic needs. The man who accumulated goods beyond what he needed to live in a decent and fitting fashion according to his status had no right to keep his wealth
According to Cardinal Cajetan, the great commentator of the Summa, and other Thomistic glossers, the government can - if the need be grave and manifest - "
take from someone who is unwilling to dispense from what is superfluous for life or state, and to distribute it to the poor".
To provide you with the full quotation:
"...Now what a ruler can do in virtue of his office, so that justice may be served in the matter of riches, is to take from someone who is unwilling to dispense from what is superfluous for life or state, and to distribute it to the poor. In this way he just takes away the dispensation power of the rich man to whom the wealth has been entrusted because he is not worthy. For according to the teaching of the saints, the riches that are superfluous do not belong to the rich man as his own but rather to the one appointed by God as dispenser, so that he can have the merit of a good dispensation...as Basil said, it belongs to the indigent..."
- Cardinal Cajetan (1469-1534), "Commentary on the Summa Theologica," vol. 6, II-II, 118.3
So it depends what one means by "wealth". If by it, you mean what a person requires to satisfy his needs and station, then "no," but a person is still expected to be charitable from these resources - albeit entirely at his own discretion. Only a tyrannical state would expropriate or take away the wealth a person has to maintain their needs and standing in life. Whatever wealth a person has for this end legitimately belongs to them.
But if by wealth you mean possession of resources exclusively for oneself beyond whatever is required to satisfy your needs and standing, that is wealth which is superfluous to these two ends then....
ahem In cases of extreme need, it is "common" wealth unjustly expropriated in our eyes.
Pope Paul VI made the point quite clear in his 1967 encyclical "
Populorum Progressio":
Populorum Progressio - Papal Encyclicals
If the world is made to furnish each individual with the means of livelihood and the instruments for his growth and progress, each man has therefore the right to find in the world what is necessary for himself. The recent Council reminded us of this: “God intended the earth and all that it contains for the use of every human being and people. Thus, as all men follow justice and unite in charity, created goods should abound for them on a reasonable basis”[20] All other rights whatsoever, including those of property and of free commerce, are to be subordinated to this principle. They should not hinder but on the contrary favor its application. It is a grave and urgent social duty to redirect them to their primary finality.
23. “If someone who has the riches of this world sees his brother in need and closes his heart to him, how does the love of God abide in him?.”[21] It is well known how strong were the words used by the Fathers of the Church to describe the proper attitude of persons who possess anything towards persons in need. To quote Saint Ambrose: “You are not making a gift of your possessions to the poor person. You are handing over to him what is his. For what has been given in common for the use of all, you have arrogated to yourself. The world is given to all, and not only to the rich”.[22] That is, private property does not constitute for anyone an absolute and unconditioned right. No one is justified in keeping for his exclusive use what he does not need, when others lack necessities. In a word, “according to the traditional doctrine as found in the Fathers of the Church and the great theologians, the right to property must never be exercised to the detriment of the common good”. If there should arise a conflict “between acquired private rights and primary community exigencies”, it is the responsibility of public authorities “to look for a solution, with the active participation of individuals and social groups”.[23]
24. If certain landed estates impede the , general prosperity because they are extensive, unused or poorly used, or because they bring hardship to peoples or are detrimental to the interests of the country, the common good sometimes demands their expropriation. While giving a clear statement on this,[24] the Council recalled no less clearly that the available revenue is not to be used in accordance with mere whim, and that no place must be given to selfish speculation. Consequently it is unacceptable that citizens with abundant incomes from the resources and activity of their country should transfer a considerable part of this income abroad purely for their own advantage, with out care for the manifest wrong they inflict on their country by doing this.[25]