Stephen Hawking

However difficult life may seem, there is always something you can do and succeed at.

Obviously, because of my disability, I need assistance. But I have always tried to overcome the limitations of my condition and lead as full a life as possible. I have traveled the world, from the Antarctic to zero gravity.

Work gives you meaning and purpose and life is empty without it.

I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.

I have wondered about time all my life.

The 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.

There are plenty of dead scientists I admire, but I can't think of any living ones. This is probably because it is only in retrospect that one can see who made the important contributions.

The universe is not indifferent to our existence - it depends on it.

We should seek the greatest value of our action.

I am in touch with a company that hopes to replicate my voice. However, they are not replicating my original voice - if they did that, I would sound like a man in his 20s, which would be very strange! They are actually trying to replicate the synthesizer that sits on my wheelchair.

What was God doing before the divine creation?

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.