Professor Amy Chua of the Yale law school is better known as a “Tiger Mom” because of her take-no-prisoners tough love approach to raising children. She and her husband Jed Rubenfeld (a fellow Yale law professor) have written what may turn out to be the best book of this year.

It is titled The Triple Package because it argues that three qualities are found in spectacularly successful groups in America. These three qualities, they say, are a superiority complex, insecurity and impulse control.