I Do Not See How A Man

It Is More Important To Have Beauty In One's Equations Than To Have Them Fit Experiment.

A Theory With Mathematical Beauty Is More Likely To Be Correct Than An Ugly One That Fits Some Experimental Data.

The Methods Of Theoretical Physics Should Be Applicable To All Those Branches Of Thought In Which The Essential Features Are Expressible With Numbers.

I Learnt To Distrust All Physical Concepts As The Basis For A Theory. Instead One Should Put One's Trust In A Mathematical Scheme, Even If The Scheme Does Not Appear At First Sight To Be Connected With Physics. One Should Concentrate On Getting Interesting Mathematics.

No. I Had Successfully Solved The Difficulty Of Finding A Description Of The Electron Which Was Consistent With Both Relativity And Quantum Mechanics. Of Course, When You Solve One Difficulty, Other New Difficulties Arise. You Then Try To Sove Them. You Can Never Solve All Difficulties At Once.