>In fact these days we are all that man or woman; you only need to resort to Wikipedia to realise how outdated the idea of knowing everything — or indeed anythi

>In fact these days we are all that man or woman; you only need to resort to Wikipedia to realise how outdated the idea of knowing everything — or indeed anything — has become. The word is polymath, like polyglot. We don't expect a polyglot to speak all languages. Leonardo won't have known everything either.