Who said "The smallest humbug can make the loudest noise."?

This quote is attributed to The Humbug.

The smallest humbug can make the loudest noise. - The Humbug

"The smallest humbug can make the loudest noise."

The Humbug Humor

Character in The Phantom Tollbooth

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"How many people do you suppose have to believe something before it's true?"

"We must make the most of each moment."

"You must always be careful when thanking someone."

"Rules and regulations are all very well, but you must always act according to your conscience."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."