Therefore it is said that he is brought to trial by Typhon on the charge of illegitimacy, as not being pure nor uncontaminated like his father, reason unalloyed and unaffected of itself, but contaminated in his substance because of the corporeal element. He prevails, however, and wins the case when Hermes, that is to say Reason, testifies and points out that Nature, by undergoing changes of form with reference to the perceptible, duly brings about the creation of the world.