We have one real candidate for changing the rules; this is string theory. In string theory the one-dimensional trajectory of a particle in spacetime is replaced by a two-dimensional orbit of a string. Such strings can be of any size, but under ordinary circumstances they are quite tiny, ... a value determined by comparing the predictions of the theory for Newton's constant and the fine structure constant to experimental values.
-Edward Witten
Select a background
![Awesome background image](/backgrounds/default/1-400.png)
![Awesome background image](/backgrounds/default/8.png)
![Awesome background image](/backgrounds/default/10.png)
![Awesome background image](/backgrounds/default/13.png)
![Awesome background image](/backgrounds/default/22.png)
![Awesome background image](/backgrounds/default/15.png)
![Awesome background image](/backgrounds/default/16.png)
![Awesome background image](/backgrounds/default/25.png)
![Awesome background image](/backgrounds/default/20.png)
![Awesome background image](/backgrounds/default/17.png)
![Awesome background image](/backgrounds/default/3.png)
![Awesome background image](/backgrounds/default/7.png)
![Awesome background image](/backgrounds/default/1-375.png)
![Awesome background image](/backgrounds/default/12.png)
![Awesome background image](/backgrounds/default/11.png)
![Awesome background image](/backgrounds/default/21.png)
![Awesome background image](/backgrounds/default/1.png)
![Awesome background image](/backgrounds/default/6.png)
![Awesome background image](/backgrounds/default/4.png)
![Awesome background image](/backgrounds/default/19.png)
![Awesome background image](/backgrounds/default/24.png)
![Awesome background image](/backgrounds/default/5.png)
![Awesome background image](/backgrounds/default/23.png)
![Awesome background image](/backgrounds/default/9.png)
![Awesome background image](/backgrounds/default/4.jpg)
![Awesome background image](/backgrounds/default/14.png)
![Awesome background image](/backgrounds/default/1-275.png)
![Awesome background image](/backgrounds/default/2.png)
![Awesome background image](/backgrounds/default/18.png)
More quotes by Edward Witten
Popular Authors
A curated listing of popular authors.