The right of labor to join together to negotiate with capital is a vital right in this increasingly global world and by all accounts, the Catholic Church virtually began the modern union movement with the encyclical of Pope Leo XIII in 1891,Rerum Novarum and this excerpt from it is worth reflecting upon during this period of time when, after many years of shrinkage, modern unions appear to be once more growing.
46. If a workman's wages be sufficient to enable him comfortably to support himself, his wife, and his children, he will find it easy, if he be a sensible man, to practice thrift, and he will not fail, by cutting down expenses, to put by some little savings and thus secure a modest source of income. Nature itself would urge him to this. We have seen that this great labor question cannot be solved save by assuming as a principle that private ownership must be held sacred and inviolable. The law, therefore, should favor ownership, and its policy should be to induce as many as possible of the people to become owners.
47. Many excellent results will follow from this; and, first of all, property will certainly become more equitably divided. For, the result of civil change and revolution has been to divide cities into two classes separated by a wide chasm. On the one side there is the party which holds power because it holds wealth; which has in its grasp the whole of labor and trade; which manipulates for its own benefit and its own purposes all the sources of supply, and which is not without influence even in the administration of the commonwealth. On the other side there is the needy and powerless multitude, sick and sore in spirit and ever ready for disturbance. If working people can be encouraged to look forward to obtaining a share in the land, the consequence will be that the gulf between vast wealth and sheer poverty will be bridged over, and the respective classes will be brought nearer to one another. A further consequence will result in the great abundance of the fruits of the earth. Men always work harder and more readily when they work on that which belongs to them; nay, they learn to love the very soil that yields in response to the labor of their hands, not only food to eat, but an abundance of good things for themselves and those that are dear to them. That such a spirit of willing labor would add to the produce of the earth and to the wealth of the community is self evident. And a third advantage would spring from this: men would cling to the country in which they were born, for no one would exchange his country for a foreign land if his own afforded him the means of living a decent and happy life. These three important benefits, however, can be reckoned on only provided that a man's means be not drained and exhausted by excessive taxation. The right to possess private property is derived from nature, not from man; and the State has the right to control its use in the interests of the public good alone, but by no means to absorb it altogether. The State would therefore be unjust and cruel if under the name of taxation it were to deprive the private owner of more than is fair.
48. In the last place, employers and workmen may of themselves effect much, in the matter We are treating, by means of such associations and organizations as afford opportune aid to those who are in distress, and which draw the two classes more closely together. Among these may be enumerated societies for mutual help; various benevolent foundations established by private persons to provide for the workman, and for his widow or his orphans, in case of sudden calamity, in sickness, and in the event of death; and institutions for the welfare of boys and girls, young people, and those more advanced in years.
49. The most important of all are workingmen's unions, for these virtually include all the rest. History attests what excellent results were brought about by the artificers' guilds of olden times. They were the means of affording not only many advantages to the workmen, but in no small degree of promoting the advancement of art, as numerous monuments remain to bear witness. Such unions should be suited to the requirements of this our age - an age of wider education, of different habits, and of far more numerous requirements in daily life. It is gratifying to know that there are actually in existence not a few associations of this nature, consisting either of workmen alone, or of workmen and employers together, but it were greatly to be desired that they should become more numerous and more efficient. We have spoken of them more than once, yet it will be well to explain here how notably they are needed, to show that they exist of their own right, and what should be their organization and their mode of action.