" Nelson knew when he started that he couldn't remake the entire high-school experience for his students. But he thought that perhaps he didn't need to. By helping his students develop the specific nonacademic skills that would lead most directly to college success, he believed he could compensate, relatively quickly, for the serious gap in academic ability that separated the average senior at a Chicago public high school from the average American college freshman. Nelson, using instinct more than research, identified five skills, which he called leadership principles, that he wanted OneGoal teachers to emphasize: resourcefulness, resilience, ambition, professionalism, and integrity. These words now permeate the program. "

― Paul Tough , How Children Succeed: Grit, Curiosity, and the Hidden Power of Character