[The explorable and the unexplorable].
D005075:Biological Evolution / Q000266:history; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010684:Philosophy; D010827:Physiology / Q000266:history*
Megismerhetelen vagy megismerhetö.