And among the teachings of Bahá’u’lláh is that although material civilization is one of the means for the progress of the world of mankind, yet until it becomes combined with divine civilization the desired result, which is the felicity of mankind, will not be attained. Consider! These battleships that reduce a city to ruins within the space of an hour are the result of material civilization; likewise the Krupp guns, the Mauser rifles, dynamite, submarines, torpedo boats, armed aircraft and bombing aeroplanes—all these weapons of war are malignant fruits of material civilization. Had material civilization been combined with divine civilization, these fiery weapons would never have been invented. Nay, rather human energy would have been wholly devoted to useful inventions and concentrated on praiseworthy discoveries. Material civilization is like a globe of glass. Divine civilization is the light itself, and the glass without the light is dark. Material civilization is like the body. No matter how infinitely graceful, elegant and beautiful it may be, it is dead. Divine civilization is like the spirit, and the body gets its life from the spirit, otherwise it becomes a corpse. It has thus been made evident that the world of mankind is in need of the breaths of the Holy Spirit. Without the spirit the world of mankind is lifeless, and without this light the world of mankind is in utter darkness. For the world of nature is an animal world. Until man is born again from the world of nature—that is to say, becomes detached from the world of nature, he is essentially an animal, and it is the teachings of God which convert this animal into a human soul. And among the teachings of Bahá’u’lláh is the promotion of education. Every child must be instructed in sciences as much as is necessary. If the parents are able to provide the expenses of this education, it is all right; otherwise the community must provide the means for the teaching of that child. And among the teachings of His Holiness Bahá’u’lláh are justice and right. Until these are realized on the plane of existence, all things will be in disorder and remain imperfect. The world of mankind is a world of oppression and cruelty, and a realm of aggression and error.