The men and women bound by mutual interest in society are not merely families, castes, classes, groups or kinsmen or kinswomen, they are One Atma. They are knit by the closest of family ties; not only the one society to which they feel they are bound, but, all mankind is One. Vasudhaiva Kutumbakam, as the Shastras declare, the whole world is one family. This unity must be experienced by everyone. (SSS Vol.7, p. 48)

The whole world is one family Vasudhaiva Kutumbakam. (SSS Vol.29, p. 11)