...separation Of The Observer From The Phenomenon

Whenever We Proceed From The Known To The Unkown We May Hope To Understand, But We May Have To Learn At The Same Time A New Meaning Of The Word 'understanding'

Science No Longer Is In The Position Of Observer Of Nature, But Rather Recognizes Itself As Part Of The Interplay Between Man And Nature. The Scientific Method ... Changes And Transforms Its Object: The Procedure Can No Longer Keep Its Distance From The Object.

The Violent Reaction On The Recent Development Of Modern Physics Can Only Be Understood When One Realises That Here The Foundations Of Physics Have Started Moving; And That This Motion Has Caused The Feeling That The Ground Would Be Cut From Science

The Solution Of The Difficulty Is That The Two Mental Pictures Which Experiment Lead Us To Form - The One Of The Particles, The Other Of The Waves - Are Both Incomplete And Have Only The Validity Of Analogies Which Are Accurate Only In Limiting Cases.

Every Word Or Concept, Clear As It May Seem To Be, Has Only A Limited Range Of Applicability.