"A disciple is one who lives not for himself but for the world, not for his personal interests and achievements, but for the finest interests of the whole. What is the whole? The whole includes all kingdoms in nature: the mineral and plant kingdom, the animal and human kingdoms, and the superhuman kingdom. The progressive service of a disciple will be in balance and harmony with the future vision of all kingdoms. A disciple measures his progress by the progress of humanity—of his family, his country, and the international community. The progress of a disciple is built upon the cause of the advancement of humanity. Such progress places the disciple under spiritual tension."