Scientists have become the bearers of the torch of discovery in our quest for knowledge.
I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.
Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
I don't have much positive to say about motor neurone disease. But it taught me not to pity myself because others were worse off, and to get on with what I could still do.
I can't disguise myself with a wig and dark glasses - the wheelchair gives me away.
What was God doing before the divine creation?
I don't care much for equations myself. This is partly because it is difficult for me to write them down, but mainly because I don't have an intuitive feeling for equations.
Computers double their performance every month.
If I had a time machine, I'd visit Marilyn Monroe in her prime or drop in on Galileo as he turned his telescope to the heavens.
M-theory is the unified theory Einstein was hoping to find.
It was Einstein's dream to discover the grand design of the universe, a single theory that explains everything. However, physicists in Einstein's day hadn't made enough progress in understanding the forces of nature for that to be a realistic goal.
Work gives you meaning and purpose and life is empty without it.
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.
Someone told me that each equation I included in the book would halve the sales.
Up until the 1920s, everyone thought the universe was essentially static and unchanging in time.
The past, like the future, is indefinite and exists only as a spectrum of possibilities.
Exploration by real people inspires us.
It is extremely important to me to write for children.
I have wanted to fly into space for many years, but never imagined it would really be feasible.
A zero-gravity flight is a first step toward space travel.