Authors:

Unheard-of combinations of circumstances demand unheard-of rules.

Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.116, Penguin
Unheard-of combinations of circumstances demand unheard-of rules.