I Ask You To Look Both Ways.

[when Thinking About The New Relativity And Quantum Theories] I Have Felt A Homesickness For The Paths Of Physical Science Where There Are Ore Or Less Discernible Handrails To Keep Us From The Worst Morasses Of Foolishness.

When An Investigator Has Developed A Formula Which Gives A Complete Representation Of The Phenomena Within A Certain Range, He May Be Prone To Satisfaction. Would It Not Be Wiser If He Should Say 'foiled Again! I Can Find Out No More About Nature Along This Line.'

The Word Reality Frightens Me.

Our Model Of Nature Should Not Be Like A Building-a Handsome Structure For The Populace To Admire, Until In The Course Of Time Some One Takes Away A Corner Stone And The Edifice Comes Toppling Down. It Should Be Like An Engine With Movable Parts. We Need Not Fix The Position Of Any One Lever; That Is To Be Adjusted From Time To Time As The Latest Observations Indicate. The Aim Of The Theorist Is To Know The Train Of Wheels Which The Lever Sets In Motion-that Binding Of The Parts Which Is The Soul Of The Engine.

Our Ultimate Analysis Of Space Leads Us Not To A "here" And A "there," But To An Extension Such As That Which Relates "here" And "there." To Put The Conclusion Rather Crudely-space Is Not A Lot Of Points Close Together; It Is A Lot Of Distances Interlocked.