That which does not kill us makes us stronger.
Hm.
That, which does not kill us, makes us stronger.
Nope.
That which does. Not! Kill us? Makes us stronger!
Nope. Nope.
That. Which does? Not kill us, makes us! Stronger?
Nope.
That. Which? Does not! Kill us? Makes us! Stronger.
Nope.
I think it might be about Trebor's XXXX (forty shillings) extra strong mints.