"Dad, who built the Suez Canal?"
"I don't know, son."
"Dad, who discovered penicillin?"
"I've no idea, son."
"Dad, what's the capital of Italy?"
"I ain't got a clue, son."
"Dad, you don't mind me asking all these questions do you?"
"Of course not, son. If you don't ask, you won't learn anything."
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