Stephen Hawking

If we ever do find a complete theory of the universe, it would be a great triumph of human reason but it wouldn’t leave much for us to do. We need an intellectual challenge.

Stephen Hawking

If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we’re ever likely to do that is by going into space.

Stephen Hawking

If you believe in science, like I do, you believe that there are certain laws that are always obeyed.

Stephen Hawking

If you lined up all the cars in the world end to end, someone would try to pass them.

Stephen Hawking

if you take a positivist position, as I do, questions about reality don’t have any meaning. All one can ask is whether imaginary time is useful in formulating mathematical models that describe what we observe.

Stephen Hawking

If you understand the universe, you control it, in a way.

Stephen Hawking

Imaginary time is a new dimension, at right angles to ordinary, real time.

Stephen Hawking

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.

Stephen Hawking

In my opinion, there is no aspect of reality beyond the reach of the human mind.

Stephen Hawking

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.

Stephen Hawking