The tattoo - complete with a Monty Python line from the classic Life of Brian film 'He's not the messiah. He's a very naughty boy' written underneath it - has already won two trophies at tattoo conventions.
Mr Newton said: "I read A Brief History of Time, but to be honest I didn't understand a word, but I respect the man and that's why I got his face tattooed on my leg.
Good looking, Jack, but check this tat out -- BADOW! -- Carl F***ing Sagan bitch!
Science fan has Stephen Hawking tattooed on leg [telegraph]
Thanks to louis, who looks just like a handsome Aristotle.