Simple question: What is Annie Payson Call's definition of common sense?

People form habits which cause nervous strain. When these habits have fixed themselves for long enough upon their victims, the nerves give way and severe depression or some other form of nervous prostration is the result.

Annie Payson Call (1853-1940) was a Waltham author. She wrote several books and published articles in Ladies' Home Journal. [1] Many articles are reprinted in her book "Nerves and Common Sense".

The common theme of her work is mental health.