" People high in conscientiousness get better grades in high school and college; they commit fewer crimes; and they stay married longer. They live longer—and not just because they smoke and drink less. They have fewer strokes, lower blood pressure, and a lower incidence of Alzheimer’s disease. “It would actually be nice if there were some negative things that went along with conscientiousness,” Roberts told me. “But at this point it’s emerging as one of the primary dimensions of successful functioning across the lifespan. It really goes cradle to grave in terms of how well people do. "

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