“I hate to be obvious," added the Scarecrow, "but you'd have saved yourself a heap of trouble if you weren't too cheap to invest in a leash, Dorothy.”

“Scarecrow: I haven't got a brain... only straw. Dorothy: How can you talk if you haven't got a brain? Scarecrow: I don't know... But some people without brains do an awful lot of talking... don't they? Dorothy: Yes, I guess you're right.”

“We could have saved [the Earth] but we were too damned cheap.”

“You could only save someone that wanted to be saved; otherwise, you'd be dragged down for the count, too.”

“You have to invest yourself as a reader to be a good writer.”

“After all, your chances of winning a lottery and of affecting an election are pretty similar. From a financial perspective, playing the lottery is a bad investment. But it's fun and relatively cheap: for the price of a ticket, you buy the right to fantasize how you'd spend the winnings - much as you get to fantasize that your vote will have some impact on policy.”