Quotes By Stephen Hawking

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

There is a real danger that computers will develop intelligence and take over. We urgently need to develop direct connections to the brain so that computers can add to human intelligence rather than be in opposition.

Using e-mail, I can communicate with scientists all over the world.

There are too many accidents that can befall life on a single planet.

In Britain, like most of the developed world, stem-cell research is regarded as a great opportunity. America will be left behind if it doesn't change policy.

To confine our attention to terrestrial matters would be to limit the human spirit.

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.

The universe is governed by science. But science tells us that we can't solve the equations, directly in the abstract.

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.

I enjoy all forms of music - pop, classical and opera.

Observations indicate that the universe is expanding at an ever increasing rate. It will expand forever, getting emptier and darker.

My work and my family are very important to me.

With genetic engineering, we will be able to increase the complexity of our DNA, and improve the human race. But it will be a slow process, because one will have to wait about 18 years to see the effect of changes to the genetic code.

It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.

The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizza, let alone cooking it.

Nothing cannot exist forever.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired.

Not only does God play dice, but... he sometimes throws them where they cannot be seen.

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

We should seek the greatest value of our action.

Scientists have become the bearers of the torch of discovery in our quest for knowledge.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

I don't want to write an autobiography because I would become public property with no privacy left.

It is generally recognised that women are better than men at languages, personal relations and multi-tasking, but less good at map-reading and spatial awareness. It is therefore not unreasonable to suppose that women might be less good at mathematics and physics.

Philosophers have not kept up with modern developments in science. Particularly physics.

God not only plays dice, He also sometimes throws the dice where they cannot be seen.

We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.

There are grounds for cautious optimism that we may now be near the end ofthe search for the ultimate laws of nature.

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?