Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, — Edward Witten
1/r^2 has a nasty singularity at r=0, but it did not bother Newton-the Moon is far enough. — Edward Witten
One of the basic things about a string is that it can vibrate in many different shapes — Edward Witten
In einstein’s general relativity the structure of space can change but not its topology. — Edward Witten
So when you ask me how string theory might be tested, I can tell you what’s likely to — Edward Witten
There was a long history of speculation that in quantum gravity, unlike einstein’s classical — Edward Witten
The theory has to be interpreted that extra dimensions beyond the ordinary four dimensions — Edward Witten
String theory is an attempt at a deeper description of nature by thinking of an elementary particle — Edward Witten