"We five fellow countrymen in our compartment have decided that the origin of conjugial love comes from the most ancient peoples in the golden age, and among them, from the creation of Adam and his wife. The origin of marriage comes from this source, and with marriage, the origin of conjugial love. "As for the vigor or potency of conjugial love, we trace the origin of this from no other source than the climate or solar zone, and thus from the heat of the sun upon the land. We came to this consideration not as the result of empty figments of reason, but from the plain indications of experience. We came to it, for instance, from our knowledge of peoples below the equatorial line or circle, where the day's heat blazes like fire, and from comparing peoples who live nearer that line and peoples who live further away from it. We also came to this consideration as well from seeing the cooperation of solar heat with the vital heat in animals of the earth and birds of the sky in springtime when they beget their young. "Besides, what is conjugial love but heat, which, if strengthened by additional heat from the sun, becomes vigorous or potent." This statement was signed below with the letters, Sp., the initial letters of the kingdom the writers were from.