As to thy question whether the physical world is subject to any limitations, know thou that the comprehension of this matter dependeth upon the observer himself. In one sense, it is limited; in another, it is exalted beyond all limitations. The one true God hath everlastingly existed, and will everlastingly continue to exist. His creation, likewise, hath had no beginning, and will have no end. All that is created, however, is preceded by a cause. This fact, in itself, establisheth, beyond the shadow of a doubt, the unity of the Creator. 