Stephen Hawking

The development of full artificial intelligence could spell the end of the human race.

Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn how to avoid the risks.

We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and crowded planet.

Mankind's survival depends on our ability to cooperate with each other and with nature.

There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason.

The universe is deterministic, but we cannot know the initial conditions well enough to predict the future.

I don't demand that the universe owes me a living.

My advice to other disabled people would be, concentrate on things your disability doesn't prevent you doing well, and don't regret the things it interferes with.

Keep your head up and your eyes on the stars.

The laws of science are the laws of God.

One cannot really argue with a mathematical theorem.

The rate of progress in human development is limited by the rate of progress in science and technology.

I want my books to sell so that people will read them.

The total amount of disorder in the universe always increases with time.

A well-ordered society would have to prevent people from getting as out of proportion as they do around here.

The universe is not indifferent to our existence.

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

The sense of smell is the oldest and most powerful of our senses.

I have hardly met a mathematician who is capable of reasoning.

The world has arisen in some way or another. How it arose is the problem we call human history.