In the Third and Fourth he deals with the question of the Son.  His position may be summed up as follows:  The Son is absolutely of One Substance with the Father, and shares with Him all the Attributes of Godhead.  Yet He is a distinct Person, marked off by the fact that He is begotten of the Father.  But we must be careful not to allow this term “Begotten” to suggest to us any analogy with created things.  It is wholly independent of time and space and sense.