When she was 27, Angela Lee Duckworth left a demanding job in management consulting and took a job teaching math in a New York public school. She was surprised to discover that I.Q. wasn’t the only thing that contributed to a student’s success. Whether the student had something called “grit” was also a predictor of success. Grit is passion and perseverance for long-term goals. Fascinated, Duckworth went on to become a psychologist who studied children’s success. Her research showed that “grittier” kids—those who worked at something with long-term dedication—were more likely to graduate, win a spelling bee, or continue with military training. Brains and talent don’t take you far if you don’t follow through all the way!