Who said "Don't you see how important it is to have a plan?"?

This quote is attributed to The Humbug.

Don't you see how important it is to have a plan? - The Humbug

"Don't you see how important it is to have a plan?"

The Humbug Leadership

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."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"