 Scholars now universally agree that the work, To Gaurus on How Embryos are Ensouled attributed to Galen in the manuscripts, is not by him but by Porphyry. There is now a fine edition, translations and commentaries of this work (Wilberding 2011; Brisson et al. 2012). Though arguably an elaboration of Plotinus’ views, in To Gaurus Porphyry gives the details of a very interesting account of the development of the embryo and its relations to the parents (see in particular Wilberding 2008). Among other things Porphyry gives an explanation of how and why children resemble both their parents: the embryo develops from the seed of the father but it does not have a soul of its own. It is ruled by the vegetative soul of the mother who puts a permanent stamp on the embryo through a process of blending in which the nature of the embryo retains its individuality. The account given diverges significantly from those of previous thinkers, allowing for much greater influence of the mother.