923. Moderate Temperature

Sudden alternations of heat and cold are dangerous (especially to the young and the aged).

Therefore

, clothing, in quantity and quality, should be adapted to the alternations of night and day, and of the seasons; and drinking cold water when the body is hot, and hot tea and soups when cold, are productive of many evils.

924. Summary

Moderation in eating and drinking, short hours of labour and study, regularity in exercise, recreation, and rest, cleanliness, equanimity of temper and equality of temperature, —these are the great essentials to that which surpasses all wealth,

health of mind and body

.