Who said "The pigs alone understand the complexities of rule"?

This quote is attributed to Squealer.

The pigs alone understand the complexities of rule - Squealer

"The pigs alone understand the complexities of rule"

Squealer Leadership

Character in Animal Farm

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"Some animals are more equal than others"

"Surely there is no one among you who wants to see Jones come back?"

"The whole management and organization of this farm depend on Comrade Napoleon"

"Four legs good, two legs bad"

"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"