Moreover, it is a common law of nature that those who are strong, and give of their strength to others, add thereby to their own strength. **Co-operation.** Co-operation of all, weak or strong, is characteristic of mutual helpfulness. When many men unite to accomplish great works, mighty results follow. Each man then obtains his full reward. Even if the co-operation provides that its results are divided equally among the participants, the strong receives his full reward, for, because of his greater strength, he has done greater labor, and has consequently added greatly to his strength. The weak, by their association with the strong, having shared equally with them, have gained greater hope, and more courage to carry on their individual work of progress. The principle of co-operation is in full conformity with the whole plan of salvation. **Education.** Education looms large in the matter of mutual support, for it is only by the development of individual power that man may help his fellow man and thus recognize the full brotherhood of man. Great powers can be exercised only by faculties that are trained to the utmost. Schools are provided, where the young mind may be guided rapidly and well into a better control of itself. A rational theology must be established upon the basis of developed intelligence, which justifies the existence of schools and other devices for the proper unfolding of the mind. In the Church there must ever be a vigorous propaganda for the education of the masses. The Church must be a generally educated Church, in which the "educated class" includes all. CHAPTER 27. THE UNITED ORDER. The true relation among men, the doctrine of the brotherhood of man, is nowhere better exemplified than in the principle of the united order. This system of living represents, no doubt, the acme of brotherly love and human efficiency.