It's in Chapter 2, Break the Bonds of Boredom, just after he talks about punk.
"Punk was about putting creativity back in the hands of the people; anyone can do it, they said and, to prove it, here are the three chords you need to write a song: E, A and B7. Do it yourself.
Well, I can go one better than that. Instead of the guitar, I urge you to take up the ukulele. This four-stringed marvel is very cheap, very portable and very easy to play. It is therefore even more punk than the guitar. Here are the three chords you need to play most songs [there's an illustration here of C, G and F chords].
Get a uke and you will never be bored again. You could even make some extra cash by busking. The uke is freedom. Indeed, the Ukulele Orchestra of Great Britain's first album is called Anarchy in the Ukulele, and aptly titled it is too.
Behind the attack on boredom is a radical desire to take control of our lives back from the giant organisations to whom we have more or less willingly entrusted ourselves. This is an act of gross irresponsibility on our part. But it is not too late. We simply need to discover our own creativity. The simple way to avoid boredom is to make stuff..."
I'm adding a ukulele to my budget for June and am just going to go for it. If the above wasn't enough reason to want to learn it, the fact that Marilyn Monroe plays it in Some Like it Hot is an incentive too. Maybe I could end up looking like this: