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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After the planet becomes theirs, many millions of years will have to pass before a beetle particularly loved by God, at the end of its calculations will find written on a sheet of paper in letters of fire that energy is equal to the mass multiplied by the square of the velocity of light. The new kings of the world will live tranquilly for a long time, confining themselves to devouring each other and being parasites among each other on a cottage industry scale.

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Nor had I erred in my calculations—nor had I endured in vain. I at length felt that I was free.

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The general who wins the battle makes many calculations in his temple before the battle is fought. The general who loses makes but few calculations beforehand.

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It is the mark of a great man that he puts to flight all ordinary calculations. He is at once sublime and touching, childlike and of the race of giants.

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It does not do to leave a live dragon out of your calculations, if you live near him.

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Washington is a place where people praise courage and act on elaborate personal cost-benefit calculations.

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