It is impossible to imagine a pleasant home with a cross wife, mother or sister, as its presiding genius.

And it is a rule, with exceptions, that good appetite and sound sleep induce amiability.

If, with these advantages, a girl or woman, boy or man, is still snappish or surly, why it must be due to her or his total depravity.
Some things she should not do; she shouldn't dose herself, or study up her case, or plunge suddenly into vigorous exercise.

Moderation is a safe rule to begin with, and, indeed, to keep on with--moderation in study, in work, in exercise, in everything except fresh air, good, simple food, and sleep.

Few people have too much of these.