“If you have these four things, it doesn't matter what ethnic group you're from, you'll do well in school, ... It's just more common among Asian kids and less common among black and Latino kids.”
“We are not very good at looking at people when they are 16 and predicting what they will be like when they are 30. We know there is a huge drop in violent crime after age 24 or 25.”
“The older you are, the more hours you can withstand without seeing harmful effects. But generally, no [teen] age group does well over 20 hours per week.”