We who think we are about to die will laugh at anything.

Terry Pratchett (1948-2015) English author
Discworld No. 29, Night Watch (2002)
    (Source)

Internal monologue of Sam Vimes. Vimes is riffing off of the anecdotal gladiator salute to the Roman emperor, "We who are about to die salute you [morituri te salutamus]."