But when you are young, you are such an enthusiast you can't resist your impulse.

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Don't buy on impulse, when you're buoyed by tropical cocktails and beautiful sunsets.

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And if the person doesn't resist that impulse, you have to have some form of legal authority to make sure that they're not infectious during their travel back to the United States.

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This isn't the only impulse that impels humans to be violent - Hobbes also mentions the desire for gain and the love of glory - but it is fundamental in his account of how they escape from violence.

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The delicate, single-seat Solar Impulse flies around 40 mph and can't go through clouds.

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Whitehead points out that comic books aren't generally available at the corner store anymore, so the impulse buys he made at the drug store in his youth are less likely to happen.

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Pope BENEDICT XVI: (Through Translator) We are hoping for this because such an encounter of people from all continents should also give the old continent, the host, a new impulse and help us so that we don't only see the sick, the tired and the missed opportunities in the European history.

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When you hear Santaolalla play a traditional instrument like the ronroco with a modern impulse, the genetic blueprint behind Bajofondo's electronic tango doesn't seem so foreign.

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Back in Knoxville, he decided on impulse one afternoon to drop by the inconspicuous mosque near campus, even though it wasn't a Friday, the day Muslims gather to pray.

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