They may inspire, but their virtue is in their inaccessible internal strength.

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From the technical side, momentum and internal strength indicators remain positive.

FORBES: Winter Rally Keeps Stocks Hot, Bears In Hibernation

Many times over the past two years (such as Armageddon Fears Are Overblown on June 1, 2012 and Can Doom and Gloom Save the Market? on September 16, 2011), I have made the case that the internal strength of the stock market was signaling that the economy was actually stronger than most thought.

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Mr Mubarak appears to retain the absolute loyalty of Mr Suleiman, and also of the army, as well as the battered but still formidable strength of the internal security agencies.

ECONOMIST: Egypt and the region

And now that space has become a vast market whose strength lies in its internal diversity and dynamism.

BBC: Why India is at a crucial crossroads

Until now she has prospered by showing strength in foreign policy and deftness in managing the coalition's internal divisions.

ECONOMIST: Germany's government