Pick A Flower On Earth And You

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

There Are Always More People Who Prefer To Speak Than To Listen.

It Was Not Until Some Weeks Later That I Realized There Is No Need To Restrict Oneself To 2 By 2 Matrices. One Could Go On To 4 By 4 Matrices, And The Problem Is Then Easily Soluable. In Retrospect, It Seems Strange That One Can Be So Much Held Up Over Such An Elementary Point. The Resulting Wave Equation For The Electron Turned Out To Be Very Successful. It Led To Correct Values For The Spin And The Magnetic Moment. This Was Quite Unexpected. The Work All Followed From A Study Of Pretty Mathematics, Without Any Thought Being Given To These Physical Properties Of The Electron.

The Underlying Physical Laws Necessary For The Mathematical Theory Of A Large Part Of Physics And The Whole Of Chemistry Are Thus Completely Known, And The Difficulty Is Only That The Exact Application Of These Laws Leads To Equations Much Too Complicated To Be Soluble. It Therefore Becomes Desirable That Approximate Practical Methods Of Applying Quantum Mechanics Should Be Developed, Which Can Lead To An Explanation Of The Main Features Of Complex Atomic Systems Without Too Much Computation.

I Admired Bohr Very Much. We Had Long Talks Together, Long Talks In Which Bohr Did Practically All The Talking.