You enter a completely new world where things aren't at all what you're used to.

There was a long history of speculation that in quantum gravity, unlike Einstein's classical theory, it might be possible for the topology of spacetime to change.

There is a difference between knowing what is true and knowing why it is true

We know a lot of things, but what we don't know is a lot more.

I have a tendency, more than most other physicists, to try to figure out everything all at once, before I publish. And even to try to figure out everything in my head, without pencil and paper.

Im actually, for the most part, a complete agnostic politically.

So when you ask me how string theory might be tested, I can tell you what's likely to happen at accelerators or some parts of the theory that are likely to be tested.

I have a much easier time imagining how we would understand the big bang, even though we can't do it yet, than I can imagine understanding consciousness.

As of now, string theorists have no explanation of why there are three large dimensions as well as time, and the other dimensions are microscopic. Proposals about that have been all over the map.

One very important aspect of string theory is definitely testable. That was the prediction of supersymmetry, which emerged from string theory in the early '70s.

String theory is an attempt at a deeper description of nature by thinking of an elementary particle not as a little point but as a little loop of vibrating string.

Like most people in radio - and in magic - I'm not cool. I know people who are hip, and I can feel distance between them and me.

To be happy, it first takes being comfortable being in your own shoes. The rest can work up from there.

My message to anyone who's afraid that they can't write music when they're happy is 'Just trust the passion.' The passion can write a lot of things.

Like the cobra, you remain coiled in a loose but compact position and your strike should be felt before it is seen.

Oh, 'tis not my qualities they object to! 'Tis my lack of vice.

It is not a bad thing in a tale that you understand only half of it.

If I was working hard, she bled into my personality. I became more cynical.

The Christian's fellowship with God is rather a habit than a rapture.

No one, though has to go to college to make or understand or enjoy art. Wonderful artists and critics - some of the best - have educated themselves.

So much easier to aim for the smallest possible audience, not the largest, to build long-term value among a trusted, delighted tribe, to create work that matters and stands the test of time.