For filthe and eelde, also moot I thee,
Been grete wardeyns upon chastitee.
Modern English:
Filth and old age, I’m sure you will agree,
Are powerful wardens over chastity.

– Geoffrey Chaucer

The Canterbury Tales, The Wife of Bath’s Tale. The Loathly Lady tells the Knight how lucky he is to be married to an old hag, he won’t have to worry about her being unfaithful with other men because of her ugliness.