Eh, it's one thing to know a highly memorable quote. It's another to remember the following line.
I've listened to the audiobooks of that series so many times.
Tangent, they got Simon Jones to read for book 6. which i thought was a mistake. He played Arthur in he radio dramas. It made the audiobook hard to follow because every character sounded like Authur.
"Very deep," said Arthur, "you should send that in to the Reader's Digest. They've got a page for people like you."