For here as in other points the development of the theory of Ethics would seem to be somewhat impeded by the preponderance of practical considerations; and perhaps a more complete detachment of the theoretical study of right conduct from its practical application is to be desired for the sake even of the latter itself: since a treatment which is a compound between the scientific and the hortatory is apt to miss both the results that it would combine; the mixture is bewildering to the brain and not stimulating to the heart.