Does every individual have an obligation to think seriously about important matters,even when doing so may be difficult?

是否每个人都有义务去对那些重要的事务认真思考，即使这样做可能非常困难？

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They are doing so either by choice, because retirement savings have been devastated and they fear losing their jobs, or by necessity, because it has become so difficult to borrow.

消费者如此做，不是出于选择——因为退休储蓄已被破坏而且他们担心失业，就是出于必需——因为借钱已经很困难。

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That becomes a difficult feeling to sustain if we have already seen ourselves doing it.

如果我们已经发现自己正在做了，那就形成了一种难以继续下去的感觉。

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"Obviously (it will be) difficult, but we have been doing our work, and we will be successful, " he said.

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Billionaire philanthropists, people who genuinely care about making the world a better place, have found that doing so is difficult.

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Unlike Jack, whose choices have been mostly reflexive, Mr. Clooney and his director have opted to take many risks in doing this difficult film.

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