SEVEN THINGS FOR HEALTH
Seven things are absolutely necessary to maintain or restore health:
Fresh air; light; warmth; rest; cleanliness; and the correct selection and well-timed offering of food and drink.
The lack of only one of these requisites may hinder the exercise of a physician's skill and bring to naught both good-will and wisdom.
---Hermine Welten, How to Restore Health, c.1890
Samuel Johnson (1790-84)