Can estetics be the foundation of analytical sciences

Dirac used to say that formulas must be beautiful and elegant. He was convinced that beautiful formula's have a better chance in providing an analytical frame for physical phenomena. I have to say that Dirac's equation is indeed very beautiful. As a side effect, it was the first equation to provide a theoretical framework for antimatter and it the first equation to join quantum mechanics, special relativity, and classic electromagnetism. Not bad for a beautiful equation.