Fr. Garrigou-Lagrange, O.P.
The pressing need of devoting ourselves to the consideration of the one thing necessary is especially manifest in these days of general chaos and unrest, when so many men and nations, neglecting their true destiny, give themselves up entirely to acquiring earthly possessions, failing to realize how inferior these are to the everlasting riches of the spirit.
And yet St. Augustine’s saying is so clearly true, that ‘material goods, unlike those of the spirit, cannot belong wholly and simultaneously to more than one person.’  The same house, the same land, cannot belong completely to several people at once, nor the same territory to several nations. And herein lies the reason of that unhappy conflict of interests which arises from the feverish quest of these earthly possessions.
On the other hand, as St. Augustine often reminds us, the same spiritual treasure can belong in its entirety to all men, and at the same time to each, without any disturbance of peace between them. Indeed, the more there are to enjoy them in common the more completely do we possess them. The same truth, the same virtue, the same God, can belong to us all in like manner, and yet none of us embarrasses his fellow-possessors. Such are the inexhaustible riches of the spirit that they can be the property of all and yet satisfy the desires of each. Indeed, only then do we possess a truth completely when we teach it to others, when we make others share our contemplation; only then do we truly love a virtue when we wish others to love it also; only then do we wholly love God when we desire to make Him loved by all. Give money away, or spend it, and it is no longer yours. But give God to others, and you possess Him more fully for yourself. We may go even further and say that, if we desired only one soul to be deprived of Him, if we excluded only one soul — even the soul of one who persecutes and calumniates us — from our own love, then God Himself would be lost to us.
This truth, so simple and yet so sublime, gives rise to an illuminating principle: it is that whereas material goods, the more they are sought for their own sake, tend to cause disunion among men, spiritual goods unite men more closely in proportion as they are more greatly loved. This principle helps us to appreciate how necessary is the interior life; and, incidentally, it virtually contains the solution of the social question and of the economic crisis which afflicts the world to-day. The Gospel puts it very simply: ‘Seek ye first the kingdom of God and his justice, and all these things shall be added unto you.’ If the world to-day is on its death-bed, it is because it has lost sight of a fundamental truth which for every Christian is elementary.
The profoundest truths of all, and the most vital, are in fact those elementary verities which, through long meditation and deep thought, have become the norm of our lives; those truths, in other words, which are the object of our habitual contemplation.
God is now showing men what a great mistake they make when they try to do without Him, when they regard earthly enjoyment as their highest good, and thus reverse the whole scale of values, or, as the ancient philosophers put it, the subordination of ends. As though in the hope of compensating for the poor quality of earthly goods, men are striving to increase their quantity; they are trying to produce as much as possible in the order of material enjoyment. They are constructing machinery with the object of increasing production at a greater profit. This is the ultimate objective. But what is the consequence? The surplus cannot be disposed of; it is wasted, and unemployment is the result. The worker starves in enforced idleness while others die of surfeit.
The present state of the world is called a crisis. But in fact it is more than a crisis; it is a condition of affairs which, if men only had eyes to see, ought to be revealing, it ought to show men that they have sought their last end where it is not to be found, in earthly enjoyment — instead of God. They are seeking happiness in an abundance of material possessions which are incapable of giving it; possessions which sow discord among those that seek them, and a greater discord according as they are sought with greater avidity.
Do what you will with these material goods: share them out equally, make them the common property of all. It will be no remedy for the evil; for, so long as earthly possessions retain their nature and man retains the nature which is his, he will never find his happiness in them. The remedy is this, and this only: to consider the one thing necessary, and to ask God to give us saints who live only on this thought, saints who will give the world the spirit that it needs. God has always sent us saints in troubled times. We need them especially to-day.