Sometimes nobody, but in a blame culture where there's a perception of blame, a claim may follow..

For time and the world do not stand still. Change is the law of life. And for those who only look to the past or present are certain to miss the future.

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No-one would want to literally eat their hat so this expression is only used when someone is very sure about something. One of the earliest appearances of this phrase was in Charles Dickens' ‘The...

‘A pessimist is simply an optimist with experience’
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