The use of milk, vegetables, such as lettuce, water-purslain, cucumbers, &c., and especially of fruit in which the acid principle predominates, slackens the movement of the heart and of the sanguineous system; it diminishes the animal heat, the chief source of which is in the activity of the circulation; it produces a feeling of tranquillity and of coolness; the respiration being more slow, occasions the absorption of a less quantity of oxygen, add to which, as a less quantity of reparative materials is contained in this description of aliments, there result a less active nutrition, the loss of embonpoint and the complete prostration of every principle of irritability; in short, it is of all diets the one least capable of furnishing fuel to the passions. For common drink mere water, and, if the impulse of passion should increase, a small quantify of nitre, vinegar, or vitrolic acid, may, occasionally be added to the water to make it more cooling. Other means conducive to the same end are a laborious life, much bodily exercise, little sleep, and a spare diet, so that the fluids may be more easily conducted to other parts, and that there may not be produced a greater quantity than is requisite for the support of the body. Equally valuable "When there's a young and sweating devil That commonly rebels," will be found what Shakespeare recommends-- "A sequester from liberty, fasting and prayer, Much castigation, exercise devout."[190] Should the desire of committing excesses rise to any height, immediate recourse must be had to some serious and mind-absorbing occupation, less nutritious food and drink should be taken, all dishes peculiarly stimulating to the palate avoided, as well as the use of wine and other spirituous liquors. A cool regimen in every respect was particularly insisted upon by the ancients: hence Plato and Aristotle recommended the custom of going barefoot as a means of checking the stimulus to carnal desire, a suggestion which appears to have been acted upon by some of the monkish orders. The cold bath was considered equally efficacious, while some, among whom may be reckoned Pliny and Galen, advised thin sheets of lead to be worn on the calves of the legs and near the kidneys. The first and most important of the hygienic means consists in shunning every species of excitement and in having little or no communication with the sex, and the earlier such restraint is imposed, the better. "He that is chaste and continent, not to impair his strength, or terrified by contagion, will hardly be heroically virtuous. Adjourn not that virtue until those years when Cato could lend out his wife, and impotent satyrs write satires against lust--but be chaste in thy flaming days, when Alexander dared not trust his eyes upon the fair sisters of Darius, and when so many men think that there is no other way than that of Origen."[191][192]