And though I cannot move beyond or forget this, indeed I must always keep it as a caution light in my life.

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In fact, I always tell everyone to forget that quote and just wipe it from their minds.

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They said, 'I forget things, I don't always want to worry about whether I packed shampoo or conditioner.

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I've always suspected that many people use it once to look at their own house - and then forget about it.

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But I ask because I am merely wondering whether we sometimes forget a grim reality of the story of life on Earth - that extinction has always been with us.

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