Anyone with an open minded opinion, and anyone that can open their minds to new opinions.However in particular: John Lennon, Albert Hoffman, Jim Morrison, Adolf Hitler, Ghandi, Karl Marx, Bob Marley, Alex Grey, Maynard James Keenin, Syd Berret, Roger Waters, Jerry Garcia, Aristotle, Plato, His Holiness The Dalai Lama, Noah Levine, Chuck Palahniuk, Buddy Wakefield, Hunter S. Thompson, Timothy Leery, Bucky Sinister