They measure very, very carefully.

For we are not bold to number or compare ourselves with some of those who commend themselves. But they themselves, measuring themselves by themselves, and comparing themselves with themselves, are without understanding.

For we dare not make ourselves of the number, or compare ourselves with some that commend themselves but they measuring themselves by themselves, and comparing themselves among themselves, are not wise.

For all of our lives, my generation has defined success in terms of rising GDP growth more money in more pockets, more resources for public programs, and more jobs.

Most studies of parenting on which this advice is based are useless. They're useless because they don't control for heritability. They measure some correlation between what the parents do, how the children turn out and assume a causal relation that the parenting shaped the child.

They were taking 3,000 children, they were going to give them all these huge fish oil pills, six of them a day, and then a year later, they were going to measure their school exam performance and compare their school exam performance against what they predicted their exam performance would have been if they hadn't had the pills.