dont's for husbands: vanity

My Dear Sir,
You are neither as bad nor as good a fellow as you imagine yourself to be.

1. General Habits

Don't be conceited about your good looks.  It is more than probable that no one but yourself is aware of them; anyway, you are not responsible for them, and vanity in a man is ridiculous.  

Blanche Ebbutt.  1913
{Image via Forgotten Antiquities}