For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.

I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.

Science does not deny religion, it just offers a simpler alternative.

If you understand how the universe operates, you control it in a way.

Of course it is possible that UFO's really do contain aliens as many people believe, and the government is hushing it up

Evolution has ensured that our brains just aren't equipped to visualise 11 dimensions directly. However, from a purely mathematical point of view it's just as easy to think in 11 dimensions, as it is to think in three or four.

If human life were long enough to find the ultimate theory, everything would have been solved by previous generations. Nothing would be left to be discovered.