Irony in Candide

Chapter XV 1
"and we must die sword in hand..."   (Chapter XV)

Candide, being so young and good-natured, has no instinct for self-preservation other than the one to kill. He isn't devious in the way Cacambo or the old woman are, and he can't think on his feet. In a book full of priests, philosophers, nobleman, and Grand Inquisitors, it's ironic that the only people who know how to save themselves are the servants.