Think Like a Freak

by Steven D. Levitt

Correlation does not equal causality.

until you can admit what you don’t yet know, it’s virtually impossible to learn what you need to.

“It is the brain, not the heart or lungs, that is the critical organ,”

if there is one thing we’ve learned from a lifetime of designing and analyzing incentives, the best way to get what you want is to treat other people with decency.

Never, ever think that people will do something just because it is the “right” thing to do.

Teach Your Garden to Weed Itself.