88 quotes
Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
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.
A Brief History of Time (1988)
I still believe there are grounds for cautious optimism that we may now be near the end of the search for the ultimate laws of nature.
A Brief History of Time (1988)
Disorder increases with time because we measure time in the direction in which disorder increases.
A Brief History of Time (1988)
In a world that is in chaos politically, socially and environmentally, how can the human race sustain another 100 years?
For millions of years, mankind lived just like the animals. Then something happened which unleashed the power of our imagination. We learned to talk and we learned to listen.
British Telecom advertisement (1993)
Equations are just the boring part of mathematics. I attempt to see things in terms of geometry.
Stephen Hawking: A Biography (2005)
Mankind's greatest achievements have come about by talking, and its greatest failures by not talking.
British Telecom advertisement (1993)
Life could spread from planet to planet or from stellar system to stellar system, carried on meteors.
It is not even clear that intelligence has any long-term survival value.
Brief Answers to the Big Questions (2018)
Einstein was confused, not the quantum theory.
There is no way that we can predict the weather six months ahead beyond giving the seasonal average.
It is not clear that intelligence has any long-term survival value.
I have noticed that even people who claim everything is predetermined and that we can do nothing to change it, look before they cross the road.
Black Holes and Baby Universes and Other Essays (1993)
It is a matter of common experience that things get more disordered and chaotic with time. This observation even has its own law, the so-called second law of thermodynamics.
Brief Answers to the Big Questions (2018)
All my life, I have been fascinated by the big questions that face us, and have tried to find scientific answers to them.
Imaginary time is a new dimension, at right angles to ordinary, real time.
Inside the Mind of Stephen Hawking : Quotes from a Scientific Genius (2014)
Science could predict that the universe must have had a beginning.
Black Holes and Baby Universes and Other Essays (1993)
Life would be tragic if it weren't funny.
Yet all the evidence is that it evolves in a regular way according to certain laws. It would therefore seem reasonable to suppose that there are also laws governing the boundary conditions.