Steffy and Stella Viju credit their work ethic, rather than intelligence, for rising to the top of Poteet High School’s Class of 2014. The identical twins couldn’t outwork each other, though. They took the same advanced classes and shared a local and international background in education. They even cite equal duty to take care of their little sister after school. No wonder it took more than one tiebreaker to separate Steffy, the valedictorian, from salutatorian Stella. “We were a little disappointed that we couldn’t be up there giving our speeches together,” Stella said. In the traditional salutatorian-valedictorian order of graduation...