Facebook did seem to learn a lesson from the December 2009 privacy debacle.
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If I am to learn a lesson from this misadventure, it is that a cheap stock can always get cheaper and that it pays to cut your losses early.
Science editor Alan Boyle's blog: Researcher Jared Diamond, the author of "The World Until Yesterday, " says Congress could learn a lesson from tribal societies: Listen to your elders.
"I hope that Ali Abdullah Saleh and his regime learn a lesson from what happened to Gadhafi and his government, " said Mohammed Abulahoum, head of Yemen's opposition Justice and Development Party.
Those of us who want freedom of information to thrive should learn a key lesson from Assange's case.
Perhaps global business and political leaders could learn a lesson or two from successful business leaders in the BRIC economies.
But perhaps there is a lesson to learn from Nickelback on how to be more likeable.
We believe that Africans and our neighbours have a lesson to learn from this wrong crisis management.
We can learn a valuable lesson about this process from the struggles of another specialist: Better Place.
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For Friedman, this was a tough lesson to learn, coming from the ego-driven world of television.
And in the meantime, there is a lesson which all families can learn from this celebrity estate.
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There is a lesson which we can learn in this regard from America, the freest nation on earth.
It was a compulsory lesson: other friends from Sencholai also had to learn it.
"Coach said if we learn our lesson from the game against Notre Dame and it helps us to win a lot of games, then it was worth it, " Dieng said of Louisville's inside game.
Now, of course, it's time for the Boy Scouts themselves to learn a lesson about adaptability one that I fear may be coming too late to save the group from its long decline in numbers and influence.
If the problem of small change led economists to understand how to run a system of token money, did some of the greatest economists of the early 20th century learn the wrong lesson from the system's success?
ECONOMIST: The lessons of sound money from 1,000 years' experience
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