If There Is A God, He's A

As Time Goes On, It Becomes Increasingly Evident That The Rules Which The Mathematician Finds Interesting Are The Same As Those Which Nature Has Chosen.

A Good Deal Of My Research In Physics Has Consisted In Not Setting Out To Solve Some Particular Problem, But Simply Examining Mathematical Equations Of A Kind That Physicists Use And Trying To Fit Them Together In An Interesting Way, Regardless Of Any Application That The Work May Have. It Is Simply A Search For Pretty Mathematics. It May Turn Out Later To Have An Application. Then One Has Good Luck. At Age 78.

The Only Object Of Theoretical Physics Is To Calculate Results That Can Be Compared With Experiment... It Is Quite Unnecessary That Any Satisfactory Description Of The Whole Course Of The Phenomena Should Be Given.

The Measure Of Greatness In A Scientific Idea Is The Extent To Which It Stimulates Thought And Opens Up New Lines Of Research.

Quantum Mechanics Has Explained All Of Chemistry And Most Of Physics.