Dragon Ball is a series that is famous for preaching the benefits of hard work and training to achieve one's goals. The main characters, Goku and Vegeta, are the perfect examples of this, as pureblooded Saiyans who live to fight as a means of getting stronger and improving themselves as much as possible. They owe this to their lineage as Saiyans; the ultimate warrior race whose members are bred for battle at a young age.