Napoleon represents, in a general sense, the political tyrants that have emerged throughout human history. He forcefully expels Snowball in order to become the “Big Brother” of Animal Farm. The quote above shows the total, complete control he exerts over Animal Farm and how he justifies it to the animals. From the start, Napoleon emerges as a budding powermonger. It’s clear his motivations are power and greed. (His name is Napoleon, after all.)
SNOWBALL “Four legs good, two legs bad.” (p.38)
Snowball is an idealist who genuinely believes in his cause and seeks to improve the lives of his fellow animals. This positive trait soon leads to his downfall. His influence and popularity pale in comparison