And when they thought of how they had laboured, what discouragements they had overcome, and the enormous difference that would be made in their lives when the sails were turning and the dynamos running—when they thought of all this, their tiredness forsook them and they gambolled round and round the windmill, uttering cries of triumph. napoleon himself, attended by his dogs and his cockerel, came down to inspect the completed work; he personally congratulated the animals on their achievement, and announced that the mill would be named napoleon mill.

–animal farm,
george orwell

which theme does this passage best reflect?

greed leads to the abuse of the poor.
belief can thrive even in dire situations.
tyranny exists even in societies that promote equality.
hope can change the harshest circumstances.