Ridi, Pagliaccio, sul tuo amore infranto.
Ridi del duol che, t'awelena il cor.
(Laugh, clown, over your shattered love.
Laugh at the pain poisoning your heart.)
Canio, Act I - Pagliacci
You may take the most gallant sailor, the most intrepid airman, or the most audacious soldier, put them at a table together - what do you get? The sum of their fears.