ESSAY I OF BODY AND MIND THE PROLOGUE There is no subject that more frequently occupies the attention of the contemplative than man: yet there are many circumstances concerning him that we shall hardly admit to have been sufficiently considered. Familiarity breeds contempt. That which we see every day and every hour, it is difficult for us to regard with admiration. To almost every one of our stronger emotions novelty is a necessary ingredient. The simple appetites of our nature may perhaps form an exception. The appetite for food is perpetually renewed in a healthy subject with scarcely any diminution and love, even the most refined, being combined with one of our original impulses, will sometimes for that reason withstand a thousand trials, and perpetuate itself for years. In all other cases it is required, that a fresh impulse should be given, that attention should anew be excited, or we cannot admire. Things often see...