The prize may only be taken as stated and cannot be changed.

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Bruce Schneier, a security guru, says that biometrics are unsuitable for use as keys because, unlike passwords or digital signatures, they are not secret, and cannot be changed, destroyed or declared invalid.

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Royal charters are formal documents that have been used to establish and lay out the terms of organisations, including the BBC and the Bank of England, and cannot be changed without government approval.

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The truth of the matter is that the war and its aftermath have changed Eritrea, and it cannot be the same politically passive place again.

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What has happened cannot be changed and, when lessons are not heeded, is doomed to repeat itself.

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But I am injured and it is a fact that cannot be changed.

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To begin with, the political and economic culture of a nation cannot be radically changed by government decree.

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And if they cannot work out when they are so breaching another patent, then perhaps the system needs to be changed, eh?

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Both the prime minister and the two other parties agree on the concept of a royal charter, a formal document used to establish and lay out the terms of an organisation, for example the Bank of England or the BBC, that cannot be changed without government approval.

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