For a doctrine which is able to maintain itself not in clear light but only in the dark, will of necessity lose its effect on mankind, with incalculable harm to human progress.

一个理论只是达到维持自己，若没有明亮的闪光点，在黑暗中只能将必然失去人类的进步，其对人类带来无法估量的危害。

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The harm and loss they cost are incalculable .

它造成的损失是无法估量的。

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Had they been adopted during the Cold War, these policies would have done incalculable harm to the national interest.

CENTERFORSECURITYPOLICY: The Case Against the Halperin Nomination �� First Edition

That will do incalculable harm to race relations and undermine the inclusive British identity that Labour has tried to nurture.

ECONOMIST: Terrorism

But if history teaches us anything, it is that determined, disciplined and ruthless people can do incalculable harm to others in the pursuit of crazy, supremacist goals.

CENTERFORSECURITYPOLICY: Rollback the Muslim Brotherhood