"The distinction between articles of food as clean and unclean was not a merely ceremonial and arbitrary regulation, but was based upon sanitary principles.... There are few who realize as they should how much their habits of diet have to do with their health, their character, their usefulness in this world, and their eternal destiny. The appetite should ever be in subjection to the moral and intellectual powers. The body should be servant to the mind, and not the mind to the body."