The greatest horrors in the history of mankind are not due to the ambition of the Napoleons or the vengeance of the Agamemnons, but to the doctrinaire philosophers. The theories of the sentimentalist Rousseau inspired the integrity of the passionless Robespierre. The cold-blooded calculations of Karl Marx led to the judicial and business-like operations of the Cheka.

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If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.

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If you are distressed by anything external, the pain is not due to the thing itself but to your own estimate of it; and this you have the power to revoke at any moment.

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Is there something in trade that desiccates and flattens out, that turns men into dried leaves at the age of forty? Certainly there is. It is not due to trade but to intensity of self-seeking, combined with narrowness of occupation. Business has destroyed the very knowledge in us of all other natural forces except business.

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If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it and this you have the power to revoke at any moment.

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If you are distressed by anything external, the pain is not due to the thing itself but to your own estimate of it and this you have the power to revoke at any moment.

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Prince Hal. Why, thou owest God a death. Falstaff. 'Tis not due yet, I would be loath to pay him before his day.

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The little trouble in the world that is not due to love is due to friendship.

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Woe to him that claims obedience when it is not due; woe to him that refuses it when it is.

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