The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph. — Stephen Hawking Copy Share Image
We are entering an increasingly dangerous period of our history. But I'm an optimist. — Stephen Hawking Copy Share Image
My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand. — Stephen Hawking Copy Share Image
Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn… — Stephen Hawking Copy Share Image
The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they… — Stephen Hawking Copy Share Image
Throughout history, people have studied pure science from a desire to understand the universe rather than practical applications for commercial gain. But… — Stephen Hawking Copy Share Image
I put a lot of effort into writing 'A Briefer History' at a time when I was critically ill with pneumonia because… — Stephen Hawking Copy Share Image
In A Brief History Of Time I used the word "God" like Einstein did as a shorthand for the laws of physics.… — Stephen Hawking Copy Share Image
I had not expected 'A Brief History of Time' to be a best seller. It was my first popular book and aroused… — Stephen Hawking Copy Share Image
We believe human begins have existed for only a small fraction of cosmic history, because human race has been improving so rapidly… — Stephen Hawking Copy Share Image
I think [contacting an alien civilization] would be a disaster. The extraterrestrials would probably be far in advance of us. The history… — Stephen Hawking Copy Share Image
The world has changed far more in the past 100 years than in any other century in history. The reason is not… — Stephen Hawking Copy Share Image
When I was young, Stephen Hawking wasn't the world's most famous physicist. The fame didn't arrive until the publication of "A Brief… — Stephen Hawking Copy Share Image
Everything that civilisation has to offer is a product of human intelligence; we cannot predict what we might achieve when this intelligence… — Stephen Hawking Copy Share Image
Please join me in applauding the ESA - European Space Agency’s historic efforts with the Rosetta Mission and landing a spacecraft on… — 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