We should earnestly seek and thoroughly investigate realities, recognizing that the purpose of the religion of God is the education of humanity and the unity and fellowship of mankind. Furthermore, we will establish the point that the foundations of the religions of God are one foundation. This foundation is not multiple, for it is reality itself. Reality does not admit of multiplicity, although each of the divine religions is separable into two divisions. One concerns the world of morality and the ethical training of human nature. It is directed to the advancement of the world of humanity in general; it reveals and inculcates the knowledge of God and makes possible the discovery of the verities of life... The second classification or division comprises social laws and regulations applicable to human conduct. This is not the essential spiritual quality of religion. It is subject to change and transformation according to the exigencies and requirements of time and place.
—‘Abdu’l-Bahá, The Promulgation of Universal Peace
