Praxis et mimesis : considération sur les droits d'auteur

" When I say "feel free, just do it !" do I need to quote and/or give money to Jerry RUBIN ? and If I do it, do I need to thank Jerry RUBIN or the one who say it to Jerry RUBIN ? so i try not to waste too much time in blabla and try to do it and then understand that what I really can't do (maybe the only thing) is to pretend that history of arts and forms begins with me or that I created something new : things are already here and there but sometimes just hidden or forgotten,