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Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.

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Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”

“Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”

Upton Sinclair

Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
Upton Sinclair Quote: “Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.”
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