1. There's no permanency about those little distinctions.
   一些大大的職位名稱并不是保持穩定長久。
2. Of course permanency has been a problem for artists since the first prehistory artist scratched into a chalk wall in a French cave.
   本來，對藝家比喻，保持永遠的的藝類型也是個相關問題，例如說，史前藝家一年前在洞穴的白灰墻體上塑造作品集，但當下并不會夢見過世的人沒辦法做后。