A Physical Law Must Possess Mathematical Beauty.

Scientific Progress Is Measured In Units Of Courage, Not Intelligence.

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

I Should Like To Suggest To You That The Cause Of All The Economic Troubles Is That We Have An Economic System Which Tries To Maintain An Equality Of Value Between Two Things, Which It Would Be Better To Recognise From The Beginning As Of Unequal Value.

When [erwin Schrödinger] Went To The Solvay Conferences In Brussels, He Would Walk From The Station To The Hotel Where The Delegates Stayed, Carrying All His Luggage In A Rucksack And Looking So Like A Tramp That It Needed A Great Deal Of Argument At The Reception Desk Before He Could Claim A Room.

Theoretical Physicists Accept The Need For Mathematical Beauty As An Act Of Faith... For Example, The Main Reason Why The Theory Of Relativity Is So Universally Accepted Is Its Mathematical Beauty.