We sometimes forget that self-confidence is like gasoline in the fuel tank. It requires topping up on a regular basis.

有时我们忘记了，自信就像油箱里的汽油，需要定期加满。

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And finally, though this may appear a bit self-serving, the doctor in me is shouting out not to forget an issue that has been driven to the background by the credit markets, job losses and threats overseas: health care.

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The only problem with that is we tend not to probe deeply when someone is so self-evidently right, and forget the times they were wrong.

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