Few are born with these qualities, and no management training programme exists.

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You have no idea how rare people with these qualities are.

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It wants to emulate what it sees as desirable western behaviour by promoting individuality and risk-taking among its staff and by attracting new people with these qualities.

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Yet as boys reach manhood, they begin to lose their closest male friends and become less willing to be emotionally vulnerable because they associate these qualities with being female or gay.

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As he grew into a young man, these qualities grew with him and so it is not surprising to see how so many lives were affected by his disappearance.

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According to David Jackson, professor of Russian and Scandinavian art histories at the University of Leeds, these qualities allow people with little knowledge of Expressionist art to relate to what was, when it was first shown, an avant-garde work.

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Twitter will need these qualities to keep its users engaged with its own web site.

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