Bits of ignorance are like viruses that are copied and spread by interaction.

All physical systems can be thought of as registering and processing information, and how one wishes to define computation will determine your view of what computation consists of.

I have not proved that the universe is, in fact, a digital computer and that it's capable of performing universal computation, but it's plausible that it is.

One of the things that I've been doing recently in my scientific research is to ask this question: Is the universe actually capable of performing things like digital computations?

Computers are famous for being able to do complicated things starting from simple programs.

Nothing in life is certain except death, taxes, and the second law of thermodynamics.

The history of the universe is, in effect, a huge and ongoing quantum computation. The universe is a quantum computer.

Thinking of the universe as a computer is controversial.

There are considerable advantages to using many degrees of freedom to store information, stability and controllability being perhaps the most important.

Of course, not everybody's willing to go out and do the experiments, but for the people who are willing to go out and do that, - if the experiments don't work, then it means it's not science.

In order to figure out how to make atoms compute, you have to learn how to speak their language and to understand how they process information under normal circumstances.

I have discovered in 20 years of moving around a ballpark, that the knowledge of the game is usually in inverse proportion to the price of the seats.

True wealth is not what you have, it's what you're left with with when all you have is gone.

If all the world be worth thy winning. / Think, oh think it worth enjoying: / Lovely Thaïs sits beside thee, / Take the good the gods provide thee.

You never know people, do you? You can work with 'em for twenty years; you don't know 'em at all.

I have so much to do today that I must set apart more time than usual to pray.

A leader sees greatness in other people. He nor she can be much of a leader if all she sees is herself.

We have a problem with radical Islamism and I actually think that we could work together with Russia against this enemy. They have a worse problem than America does.

Whatever you do to the least of my brethren, you do it to me.

What goes on around you... compares little with what goes on inside you.

I'm not watching any TV shows, frankly.