From one of Jonah’s e-mails:

The real money line that I recall from the book was in an interview
(I think on CSPAN) when Abigail was asked why Jews do so well on
standardized tests: “Because they’ve been studying for them for 8,000
years.”

And to think, most American high-school students think they have it unbearably hard, having to spend their Saturdays (or whatever) with Princeton Review for a few months.