![no fool like an old fool, there's no fool like an old fool, there's](https://www.tekportal.net/wp-content/uploads/2018/12/no-fool-like-an-old-fool-theres.jpg)
An old fool is the worst kind of fool, as in He’s marrying a woman fifty years his junior—there’s no fool like an old fool. This adage, now considered somewhat offensive for stereotyping old people, appeared in John Heywood’s 1546 proverb collection and has been repeated ever since.