Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space. — Stephen Hawking Copy Share Image
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to… — Stephen Hawking Copy Share Image
The life we have on Earth must have spontaneously generated itself. It must therefore be possible for life to generate spontaneously elsewhere… — Stephen Hawking Copy Share Image
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change… — Stephen Hawking Copy Share Image
Because imaginary time behaves like another direction in space, histories in imaginary time can be closed surfaces, like the surface of the… — Stephen Hawking Copy Share Image
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global nuclear war, a… — Stephen Hawking Copy Share Image
We think that life develops spontaneously on Earth, so it must be possible for life to develop on suitable planets elsewhere in… — Stephen Hawking Copy Share Image
Not to leave planet Earth would be like castaways on a desert island not trying to escape...Sending humans to other planets ...… — Stephen Hawking Copy Share Image
Bodies like the earth are not made to move on curved orbits by a force called gravity; instead, they follow the nearest… — Stephen Hawking Copy Share Image
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global warming, nuclear war,… — Stephen Hawking Copy Share Image
Gravity is so strong that space is bent round onto itself, making it rather like the surface of the earth. If one… — Stephen Hawking Copy Share Image
I think the human race doesn't have a future if we don't go into space. We need to expand our horizons beyond… — Stephen Hawking Copy Share Image
So when people ask me if I believe God created the universe, I tell them that the question itself makes no sense.… — Stephen Hawking Copy Share Image
If we can avoid disaster for the next two centuries, our species should be safe as we spread into space. If we… — Stephen Hawking Copy Share Image
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change… — Stephen Hawking Copy Share Image
This required abandoning the idea that there is a universal quantity called time that all clocks measure. Instead, everyone would have his… — Stephen Hawking Copy Share Image
One can see from space how the human race has changed the Earth. Nearly all of the available land has been cleared… — Stephen Hawking Copy Share Image
The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years. — Stephen Hawking Copy Share Image
We are the product of quantum fluctuations in the very early universe. — Stephen Hawking Copy Share Image
The human race does not have a very good record of intelligent behavior. — Stephen Hawking Copy Share Image
“We have finally found something that doesn’t have a cause, because there was no time for a cause to exist in. For me this… — Stephen Hawking Copy Share Image
[On President Bush's plan to get to Mars in 10 years] Stupid. Robots would do a better job and be much cheaper because you… — Stephen Hawking Copy Share Image
I believe the simplest explanation is, there is no God. No one created the universe and no one directs our fate. This leads me… — Stephen Hawking Copy Share Image
The Paralympic Games is about transforming our perception of the world. — Stephen Hawking Copy Share Image
The increase of disorder or entropy is what distinguishes the past from the future, giving a direction to time. — Stephen Hawking Copy Share Image
Most sets of values would give rise to universes that, although they might be very beautiful, would contain no one able to wonder at… — Stephen Hawking Copy Share Image
There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason. Science will win… — Stephen Hawking Copy Share Image
“In the eighteenth century, philosophers considered the whole of human knowledge, including science, to be their field and discussed questions such as: Did the… — Stephen Hawking Copy Share Image
A model is a good model if first it interprets a wide range of observations in terms of a simple and elegant model, and… — Stephen Hawking Copy Share Image
![“Because imaginary time behaves like another direction in space, histories in imaginary time can be closed surfaces, like the surface of the Earth, with no [existential] beginning or end.” quote by Stephen Hawking](https://sms4smile.com/quotes/img-quotes/4c8/stephen-hawking-389_behave_because-imaginary-time-behaves-like-anot_1708134.jpg)
![“[On President Bush's plan to get to Mars in 10 years] Stupid. Robots would do a better job and be much cheaper because you don't have to bring them back.” quote by Stephen Hawking](https://sms4smile.com/quotes/img-quotes/4f9/stephen-hawking-389_better-job_on-president-bush-s-plan-to-get-to-mars_42167.jpg)
