A very nice article about knowledge and the ability to admit that you don't know. I cite a piece of the text from the article about the work of politicians. BBC NEWS | Magazine | Three little words so hard to say : "'I, in the early days, was trying to persuade a minister this was a really important public policy. He said, 'Do you know what? Repeat victimisation's got too many syllables. Can't you think of something with fewer syllables? Could we call it repeat offending?''"