“Even bigger than Japan is the inside of your head.”

“She'd even violated the only sensible rule of dieting she'd ever run across, the sage advice of the Muppets' Miss Piggy, who recommended never eating anything bigger than your head.”

“Village is an idea; universe is an idea! If you cannot create an idea bigger than your village you live in, you remain inside your village; if we cannot create an idea greater than this universe, we remain inside this universe!”

“I dont know," said Simon, "it doesn't sound so bad to me. I'd rather have someone mess around inside my head than chop it off.""Then you're a bigger idiot than you look.”

“The bigger your head, the easier to fill your shoes.”

“It’s called a repository spell. Makes something bigger on the inside than on the outside. Works great for bags, barrels, hats, just about anything really, even a 1963 police box.”