The Summary of Physics Restored

61Everything cold and dry is without generative power unless helped from outside. Nature's most wise author therefore rightly willed the earth's cold womb to be warmed by celestial fire, and joined the moist nature of water to the dry terrestrial globe. By mixing the two generative causes, heat and moisture, he remedied earth's barrenness, and through the concurrence and mixture of all the elements made earth a natural vessel of most abundant generation. All qualities and all elements are therefore present in earth.