Sec. 5. Grounds of inferiority in the pleasures which are subjects of intemperance. We see, then, that the primal ground of inferiority in these pleasures is that which _proves_ their indulgence to be contrary to reason; namely their destructiveness upon prolongation, and their incapability of co-existing continually with other delights or perfections of the system. And this incapability of continuance directs us to the second cause of their inferiority; namely, that they are given to us as subservient to life, as instruments of our preservation--compelling us to seek the things necessary to our being, and that, therefore, when this their function is fully performed, they ought to have an end; and can be only artificially, and under high penalty, prolonged. But the pleasures of sight and hearing are given as gifts. They answer not any purposes of mere existence, for the distinction of all that is useful or dangerous to us might be made, and often is made, by the eye, without its receiving the slightest pleasure of sight. We might have learned to distinguish fruits and grain from flowers, without having any superior pleasure in the aspect of the latter. And the ear might have learned to distinguish the sounds that communicate ideas, or to recognize intimations of elemental danger without perceiving either music in the voice, or majesty in the thunder. And as these pleasures have no function to perform, so there is no limit to their continuance in the accomplishment of their end, for they are an end in themselves, and so may be perpetual with all of us--being in no way destructive, but rather increasing in exquisiteness by repetition. Sec. 6. Evidence of higher rank in pleasures of sight and hearing.