Campbell claimed that Asimov had the Three Laws already in his mind and that they simply needed to be stated explicitly .
Asimov attributes the Three Laws to John W. Campbell , from a conversation that took place on 23 December 1940 .
John W. Campbell claimed that Asimov had the Three Laws already in Asimov 's mind and that they simply needed to be stated explicitly .
Asimov attributes the Three Laws to John W. Campbell , from a conversation that took place on 23 December 1940 .