The Clue Worrying is like paying ___ you don't owe - Mark Twain
The Answer DEBT
The answer "DEBT" fits the clue because it reflects Mark Twain's idea that worrying is unnecessary. Just like paying a debt that you don't owe is a waste of money, worrying about things that may not happen is a waste of energy. Twain suggests that we often burden ourselves with worries that are not real or justified, similar to an imaginary debt. This clever comparison highlights the futility of both worrying and paying for something that isn't required.