Now city life, especially to anyone who has been accustomed to have a good deal of exercise without a modification of the food and stimulants he may take without hurt in a more active country life, is apt to put the body into a state which renders it particularly liable to all kinds of moral attack. The life is largely sedentary, and in consequence a great deal of physical vigour in young men, which would in the country be naturally and healthily expended in games and exercise for the upper classes, in manual labour for the lower, remains unused, and, except to those of strong moral principle, is a dangerous thing. Again, without modification of diet to suit the circumstances, most people eat more stimulating food than they require, and, as a natural sequence, drink more stimulating and intoxicating drinks than are good for them. This, in itself, is another exciting cause to the passions. To exercise self-control under these circumstances is a laudable and a difficult thing; but a far simpler remedy lies to hand--namely, in not letting these circumstances exist, by deliberately taking less stimulant and deliberately stinting oneself in the matter of food, or giving a fair trial to the simpler foods spoken of before, which will be found to be far less exciting, though quite as nourishing. There are many men who are capable, as far as will power goes, of limiting themselves in this manner, who, if they do not limit themselves, become nearly helpless in the grip of their temperament. For a life of sensual indulgence, to put it on the lowest grounds, is bad for the body and the mind; sensual thought even becomes a habit as hard to get rid of as any morphia habit, and for many to try to rid themselves of it, while they continue to keep their bodies in a permanent state of excitability owing to overmuch food and stimulant, would be like attempting to cure the morphia habit, and yet continually going about with a phial of it in the pocket. And nothing, again putting the question on low grounds, is so bad for the nerves as to be incessantly desiring and dwelling in thought upon a certain thing, and incessantly refusing to gratify the desire. We do not, of course, mean that it would be better to gratify it,’ but that it is better to take hold of it by the root, not merely pinch the stem, and, as far as possible, get rid of the desire. For there are certain temptations, and impurity is one, which are not safe to fight consciously, since to approach them even in thought means to be seized, as it were, by the tentacles of some infernal cuttlefish. Do not school yourself to fight them; school yourself to run away from them. Interest yourself in other things, tire yourself physically, and, above all, do not indulge in stimulants of food and drink, which, however innocent they may be in themselves, predispose, by the very feeling of vigour they give, to things which are not innocent.