Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'
Stephen HawkingNow, radical forward thinking is offering hope for the future: Replacement body parts to order. A team of scientists in California believe that if you can design them on a computer, you should be able to print them out.
Stephen HawkingThe media need superheroes in science just as in every sphere of life, but there is really a continuous range of abilities with no clear dividing line.
Stephen Hawking