Philo Judaeus De Opificio Mundi 69

So then after all the other things, as has been said before, Moses says that man was made in the image and likeness of God. And he says well; for nothing that is born on the earth is more resembling God than man. And let no one think that he is able to judge of this likeness from the characters of the body: for neither is God a being with the form of a man, nor is the human body like the form of God; but the resemblance is spoken of with reference to the most important part of the soul, namely, the mind: for the mind which exists in each individual has been created after the likeness of that one mind which is in the universe as its primitive model, being in some sort the God of that body which carries it about and bears its image within it. In the same rank that the great Governor occupies in the universal world, that same as it seems does the mind of man occupy in man; for it is invisible, though it sees everything itself; and it has an essence which is undiscernible, though it can discern the essences of all other things, and making for itself by art and science all sorts of roads leading in divers directions, and all plain; it traverses land and sea, investigating everything which is contained in either element.