Authors:

Oaths and curses are a proof of a most heroic courage, at least in appearance, which answers the same end.

Mary Collyer (1749). “Felicia To Charlotte: Being Letters From A Young Lady in the Country, To Her Friend in Town : Containing A Series of the Most Interesting Events, Interspersed with Moral Reflections ...”, p.203
Oaths and curses are a proof of a most heroic courage, at least in appearance, which answers the same end.