This entrepreneur doesn't shade the truth because he's a liar but because he lives in a future of wonderful possibilities.

FORBES: Dark Side of American Optimism

And he's not a liar.

CNN: STORY HIGHLIGHTS

Now L.Ron Hubbard, some people say that he's a fantasist and a liar...

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Despite Grant's outbursts in court - he called his former wife a "liar" - the jury rejected his complex explanation of the burglaries and sex attacks.

BBC: Night Stalker case: Delroy Grant's reign of terror ends

Hamilton's integrity has been called into question - and in some cases he has been called a liar - after he was found guilty of giving misleading evidence to race stewards following the Australian Grand Prix.

BBC: Coulthard on Hamilton row