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Heat of blood makes young people change their inclinations often, and habit makes old ones keep to theirs a great while.

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Jealousy lives upon doubts. It becomes madness or ceases entirely as soon as we pass from doubt to certainty.

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Passion makes idiots of the cleverest men, and makes the biggest idiots clever.

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Passion often makes a madman of the cleverest man, and renders the greatest fools clever.

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Passion often makes fools of the wisest men and gives the silliest wisdom.