There are two common views of the Nature of Man - the Dichotomous, and the Trichotomous.
However, a Quadrichotomous view can also be drawn from Jesus' answer to the challenge of what is the greatest commandment (Luke 10:27)
And he answered, "You shall love the Lord your God with all your heart, and with all your soul, and with all your strength, and with all your mind; and your neighbor as yourself."
or (Mark 12:30)
and you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength.
What other verses/teachings support the four-fold view listed in Luke and Mark? Is this a valid view, or is it something akin to a Hebraism using repetition to enforce a point?