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RT @johndcook: "We have most unfortunately found it necessary to get rid of a man as soon as he thinks himself an expert ..." http://t.co/6HxBwJAN
"...because no one ever considers himself expert if he really knows his job. ... The moment one gets into the 'expert' state of mind a great number of things become impossible" ‎- 9000
I tend to disagree. An expert is someone who knows a lot in a particular special area. Not someone who knows all or whose opinion is always right. E.g. I'm an expert in Python in the sense that I know much and can answer obscure questions. But every code review brings enhancements to my code, and there's a lot of things I don't know. ‎- 9000