There Are Things That Are So Serious

Every Experiment Destroys Some Of The Knowledge Of The System Which Was Obtained By Previous Experiments.

The Reality We Can Put Into Words Is Never Reality Itself.

Both Matter And Radiation Possess A Remarkable Duality Of Character, As They Sometimes Exhibit The Properties Of Waves, At Other Times Those Of Particles. Now It Is Obvious That A Thing Cannot Be A Form Of Wave Motion And Composed Of Particles At The Same Time - The Two Concepts Are Too Different

In My Paper The Fact The Xy Was Not Equal To Yx Was Very Disagreeable To Me. I Felt This Was The Only Point Of Difficulty In The Whole Scheme...and I Was Not Able To Solve It.

The Positivists Have A Simple Solution: The World Must Be Divided Into That Which We Can Say Clearly And The Rest, Which We Had Better Pass Over In Silence. But Can Anyone Conceive Of A More Pointless Philosophy, Seeing That What We Can Say Clearly Amounts To Next To Nothing? If We Omitted All That Is Unclear, We Would Probably Be Left Completely Uninteresting And Trivial Tautologies.