 Universal [nature] is the governing force of the universe [and is] diffused among the substances of the heavens [and] throughout all the bodies in the world; it is [that] in which all bodies agree and through which all are maintained at a certain general level of perfection and well being. This universal nature is the corporeal nature that is designated in the second genus, which is [that of] body, and this nature excludes all incompatible things which are abhorrent to the whole universe, such as a vacuum. ([OHI, II], 92 = TTUM, 85–86) 