Related by context. Frequent words. (Click for all words.) 70 Hawking 58 Albert Einstein 50 quantum physics 50 Einstein 49 Carl Sagan 49 Richard Dawkins 48 mathematician 47 Physicist 46 Isaac Asimov 46 theoretical physicist 46 Stephen Fry 45 Isaac Newton 45 theoretical physics 44 Charles Darwin 44 astrophysicist 43 Sir Ian McKellen 43 physicist 43 Nobel Laureate 43 quantum theory 42 Ian McKellen 42 Desmond Tutu 42 astrophysics 42 David Attenborough 41 physicists 41 quantum mechanics 41 general relativity 41 Bertrand Russell 41 Salman Rushdie 41 philosopher 41 HG Wells 41 Nobel laureate 41 extraterrestrials 41 Jerry Seinfeld 40 John Cleese 40 Einstein theory 40 Eddie Izzard 40 Aldous Huxley 40 Christopher Reeve 40 mathematicians 40 Michael Crichton 40 Archbishop Desmond Tutu 40 UFOs 40 Brief History 40 Marie Curie 40 Bill Cosby 39 Alex Trebek 39 science fiction 39 Noam Chomsky 39 Deepak Chopra 39 Richard Branson 39 Tim Berners Lee 39 Regis Philbin 39 Roger Ebert 39 cosmology 39 Michael Caine 39 Jeremy Clarkson 39 Trebek 39 Leonardo da Vinci 39 Tony Blair 39 philosophers 38 astrophysicists 38 Sean Connery 38 Sigmund Freud 38 Homer Simpson 38 Winston Churchill 38 Kurzweil 38 Maya Angelou 38 Stephen Colbert 38 flying saucers 38 Nobel Prize 38 JK Rowling 38 Germaine Greer 38 Peter Molyneux 38 particle physics 38 Niall Ferguson 38 U2 frontman Bono 38 Steve Jobs 38 Ozzy Osbourne 38 William Shatner 37 physics 37 George Carlin 37 Ricky Gervais 37 Close Encounters 37 Jim Carrey 37 Philosopher 37 immortal words 37 John Maynard Keynes 37 Nostradamus 37 Sir Ben Kingsley 37 Astronomer 37 Steve Wozniak 37 quantum computing 37 cosmos 37 Mother Teresa 37 Jane Goodall 37 Margaret Atwood 37 singularity 37 Noel Gallagher 37 Tiger Woods 37 author JK Rowling 37 Creationism