He who was God has been made man, by taking to Himself what He was not, but without losing what He was. It is in this way that God has become man. You have there something for your weakness, and you have there something for your perfection. May Christ raise you up, through His being man. May He lead you, through His being the God-man. May He take you all the way to what God is.
St. Augustine, Tract. in Johann., XXIII, 6.