On Priesthood Quorums

I just encountered the following by David O. McKay. It affirms what I have written earlier: the brethren have taught for years the importance of the priesthood quorum in each man's life. As I noted elsewhere, the priesthood quorum should be the support group of choice.

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Teachings of Presidents of the Church: David O. McKay, 3: The Purpose of the Church, pp. 23-24

Consider the priesthood of the Church. Picture therein the men and boys organized in working sections or groups, from the father ninety years old, down to the boy twelve years of age. In these groups you find exemplified all that human society seeks in social groups and in societies. There is opportunity in these quorum groups for fellowship, brotherhood, and organized service. …
Those who are active are working in an organized way for the betterment of one another, for the personal welfare of the membership and for the good of society as a whole. If we considered no further than the quorums, is not that a sublime picture, where men and boys may congregate, associate, affiliate in service for humanity, in which every man considers everyone a brother? In that quorum the doctor sits by the side of a carpenter, each interested in the most ennobling of aspirations—worship of God and helpful service to humanity!
The responsibility of the Relief Society is to aid the priesthood in establishing the kingdom of God, in relieving the suffering and giving succor to the poor, and in many ways in contributing to the peace and happiness of the world. …
One of the most encouraging promises ever given to people who love service is that made by the Savior in these words, “Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.” (Matt. 25:40.) … I grew to manhood before I realized the significance of the service that is rendered by our sisters in this Church.
The Church, recognizing the potency of other influences besides the home in the growing child’s life before he reaches self-determination, offers a religious environment almost from the time of birth. The Sunday School, the Primary, the [Young Men and Young Women organizations] arrange suitable instruction, entertainment, and proper guidance from the cradle roll to maturity.
The Latter-day Saints are truly a people who aid one another in the productive life, a life that tends towards the salvation of the human being. By that salvation I do not mean just a place in the hereafter where all our cares and worries may cease, but a salvation that applies to the individual, to the family and to society here and now. Through the Gospel of Jesus Christ, and the perfect organization of the Church as revealed in this dispensation to the Prophet Joseph Smith, we are aiding one another spiritually by taking advantage of the many opportunities for service in the Church. We are fostering brotherhood by activity and association in priesthood quorums, in auxiliary associations and in our social gatherings.