Some things are to be enjoyed (in Latin, "frui"), and others are to be used ("uti"). Things we enjoy are those we find good in themselves, and things we use are those that are good for the sake of something else. The only thing that is to be enjoyed is God. All other things, including other human beings, are to be used in relation to the proper end of enjoyment. To use something which is to be enjoyed or vice versa is to fail to love properly. The discussion of enjoyment and use leads to an extended reflection on motivation, word as flesh, and humanity as image of God.