"Never work hard for something that someone else prints an infinite amount of for free."

"Do you think it would be valuable to have a system of money where you knew, without question, that the rules were exactly the same for every participant. No matter it a powerful government or an everyday citizen?"

"Have you ever heard of a "fad" or a "bubble" that collapsed and then went on another aggressive growth phase that dwarfed the previous one 5 times in a row over a 15 year period?"

"Do you think its better for money to have someone who can arbitrarily create and control every aspect of it because there's an institution in charge, or do you think it should be a public good with the same rules for everyone?"

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These are ones that seem to trigger fresh thinking in people who are dismissive about it. It often forces them to see it a different way. What tact you use though will very much depend on the framing that the person you are talking to is coming from.