In this excerpt from "The Fortune of War" by Patrick O'Brian, the conversation between Jack and Stephen revolves around two weevils that symbolize a choice between two seemingly equal options. Stephen observes that there is no fundamental difference between the two, suggesting that they are identical in nature. However, when pressed to choose, he points out a slight advantage in one over the other, illustrating the complexity of decision-making even when options seem similar.

Jack playfully counters Stephen's reasoning, highlighting a humorous yet practical aspect of naval life: the necessity to always select the lesser of two evils. This phrase adds a layer of humor to their discussion as Jack gleefully asserts that Stephen's analytical approach has led him to an inevitable conclusion. This exchange showcases the blend of wit and wisdom in their friendship, reflecting on how choices often come down to minor differences in a broader context.