The significance of self control.

We can't have our cake and eat it too, and every major religious tradition advocates forsaking pleasure in the moment to realize greater, deferred rewards. A recent study by Moffitt et al. statistically controls for the potential confounds of intelligence and family background in examining life outcomes in a large, nationally representative sample of New Zealanders. From their abstract:

...is self-control important for the health, wealth, and public safety of the population? Following a cohort of 1,000 children from birth to the age of 32 y, we show that childhood self-control predicts physical health, substance dependence, personal finances, and criminal offending outcomes, following a gradient of self-control. Effects of children's self-control could be disentangled from their intelligence and social class as well as from mistakes they made as adolescents. In another cohort of 500 sibling-pairs, the sibling with lower self-control had poorer outcomes, despite shared family background. Interventions addressing self-control might reduce a panoply of societal costs, save taxpayers money, and promote prosperity.