4. Stout Captain Self-denial was commanded to begin his life as an officer in Emmanuel's army by taking especial watch over Ear-gate and Eye-gate; and at our last accounts of our abstemious doctor he had only got the length of Mouth-gate. But having begun so well with those three great outposts of the soul, if those two trusty officers only held on, and played the man courageously enough, they would soon be promoted to still more important, still more central, and, if more difficult and dangerous, then also much more honourable and remunerative posts. Appetite, deep and deadly as its evils are, is, after all, only an outwork of the soul; and the same sharp knife that the epicure and the sot in all their stages must put to their throat, that same knife must be made to draw blood in all parts of their mind and their heart, in their will and in their imagination, till a perfect chorus of self-denials rings like noblest martial music through all the gates, and streets, and fortresses, and strongholds, and very palaces and temples of the soul. I shall here stand aside and let the greatest of the English mystics speak to you on this present point. 'When we speak of self-denial,' he says, in his Christian Perfection, 'we are apt to confine it to eating and drinking: but we ought to consider that, though a strict temperance be necessary in these things, yet that these are the easiest and the smallest instances of self-denial.
Pride, vanity, self-love, covetousness, envy, and other inclinations of the like nature call for a more constant and a more watchful self-denial than the appetites of hunger and thirst. And till we enter into this course of universal self-denial we shall make no progress in real piety, but our lives will be a ridiculous mixture of I know not what; sober and covetous, proud and devout, temperate and vain, regular in our forms of devotion and irregular in all our passions, circumspect in little modes of behaviour and careless and negligent of tempers the most essential to piety. And thus it will necessarily be with us till we lay the axe to the root of the tree, till we deny and renounce the whole corruption of our nature, and resign ourselves up entirely to the Spirit of God, to think and speak and act by the wisdom and the purity of religion.'