ysical exercise is a most powerful aid to pure thoughts.
When unchaste ideas intrude, engage at once in something which will
demand energetic muscular exercise. Pursue the effort until fatigued,
if necessary, making, all the while, a powerful mental effort to control
the mind. Of course, evil thoughts will not be expelled by thinking
of them, but by displacing them by pure thoughts. Exercise aids this
greatly.

Exercise is also essential to balance the circulation, and thus relieve
congestion of internal organs. Sedentary persons especially need
systematic exercise. No single form of exercise is so excellent as
walking. Four or five miles a day are none too many to secure a proper
amount of muscular exercise. Gymnastics, the "health-lift," "Indian
clubs," "dumb-bells," rowing, and other forms of exercise are all good;
but none of them should be carried to excess. Ball-playing is likely
to be made a source of injury by exciting, in vigorous competition,
too violent and spasmodic action.

Daily exercise should be taken to the extent of fatigue. It is better
that those who are still strong enough should have some regular
employment which will secure exercise. Those who prefer may secure
exercise and recreation in the pursuit of some study that involves
necessary physical exertion; as, botany, geology, or entomology. The
collection of natural-history specimens is one of the most pleasant
diversions, and may be made very useful as well.

Pleasant companionship is essential to the best progress of these
patients, especially in their walks, as much more exercise may be taken
without an unpleasant sense of fatigue with a cheerful companion than
when alone. Solitude should be avoided at all times as much as possible.

Diet.--So much has already been said upon the relation of diet to
chastity and its influence upon the sexual organs that it is unnecessary
to add many remarks here. Nothing could be more untrue than the
statement made by some authors that the nature of the diet is of no
consequence.

The science of physiology teaches that our very thoughts are born of
what we eat. A man that lives on pork, fine-flour bread, rich pies and
cakes, and condiments, drinks tea and coffee and uses tobacco, might
as well try to fly as to be chaste in thought. He will accomplish wonders
if he remains physically chaste; but to be mentally virtuous would be
impossible for him without a miracle of grace.

One whose thoughts have been so