Who said "Nonsense! I haven't got the slightest idea."?

This quote is attributed to Caterpillar.

Nonsense! I haven't got the slightest idea. - Caterpillar

"Nonsense! I haven't got the slightest idea."

Caterpillar

Character in Alice's Adventures in Wonderland

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"Speak English! I don't understand French."

"You're old Father William."

"Who are you?"

"How doth the little crocodile improve his shining tail."