I think that might be Galileo, t-p. Have a google for "eppur si muove".
Or just have a look here:
There is no contemporary evidence that Galileo uttered this expression at his trial; it would certainly have been highly imprudent for him to have done so. The earliest biography of Galileo, written by his disciple Vincenzio Viviani, does not mention this phrase, and depicts Galileo as having sincerely recanted. The legend first became widely published in Querelles Littéraires (1761), recounting a tale published by an Italian living in London in 1757 (124 years after the supposed utterance).