Quote from : The Phantom Tollbooth Book

Now, remember: they're not for eating, but for listening, because you'll often be hungry for sounds as well as food. Here are street noises at night, train whistles from a long way off, dry leaves burning, busy department stores, crunching toast, creaking bed springs, and of course, all kinds of laughter. There's a little of each, and in far off, lonely places, I think you will be glad to have them.