It turns out that Nat guessed correctly about Lem: the man’s confrontational attitude belies his innate intelligence and interest in bettering himself. Although it takes a while for Lem to believe in himself as strongly as Nat does, the hard work both men invest into the sailor’s education quickly pays off. Like Nat, Lem proves that anyone can achieve success with hard work; in fact, he proves this even more clearly than Nat, whose above-average intelligence makes learning much easier for him than most people.