String theory is 21 st century physics that fell accidentally into the 20th century.

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.

Mother, who has an absolute belief that it is not the cards that one is dealt in life, it is how one plays them, is, by far, the highest card I was dealt.

The Future is, of all things, the thing least like eternity. It is the most temporal part of time--for the Past is frozen and no longer flows, and the Present is all lit up with eternal rays.

There is a huge amount of shame connected to the feeling of not being loved, because love and family, biological or not, confirms our existence. Everyone needs to be seen, accepted and loved.

Delicious autumn! My very soul is wedded to it.

The man that takes up religion for the world will throw away religion for the world.

You cannot deny that love lasts for only a brief moment, uniting two beings as a single being that is capable of only one thought, one sensation, one will.

The movie theater is never going away. If that was a case why are there still restaurants? People still have kitchens in their home!

Tell everyone that your mistakes are art. You can get away with a lot that way.

Madonnas got one big choice. Take a couple of years off and become a human being.

To believe in God for me is to feel that there is a God, not a dead one, or a stuffed one, who with irresistible force urges us towards more loving.