One Could Perhaps Describe The Situation By

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.

Renormalization Is Just A Stop-gap Procedure. There Must Be Some Fundamental Change In Our Ideas, Probably A Change Just As Fundamental As The Passage From Bohr's Orbit Theory To Quantum Mechanics. When You Get A Number Turning Out To Be Infinite Which Ought To Be Finite, You Should Admit That There Is Something Wrong With Your Equations, And Not Hope That You Can Get A Good Theory Just By Doctoring Up That Number.

I Think It Is A Peculiarity Of Myself That I Like To Play About With Equations, Just Looking For Beautiful Mathematical Relations Which Maybe Don't Have Any Physical Meaning At All. Sometimes They Do. At Age 60.

Pick A Flower On Earth And You Move The Farthest Star.

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