Truth And Clarity Are Complementary.

In Physics We Deal With States Of Affairs Much Simpler Than Those Of Psychology And Yet We Again And Again Learn That Our Task Is Not To Investigate The Essence Of Things-we Do Not At All Know What This Would Mean&mash;but To Develop Those Concepts That Allow Us To Speak With Each Other About The Events Of Nature In A Fruitful Manner.

Accuracy And Clarity Of Statement Are Mutually Exclusive.

One Must Always Do What One Really Cannot.

Of Course I Don't Believe In It [pointing To Horseshoe On His Office Wall]. But I Understand That It Brings You Luck Whether You Believe In It Or Not.

Our Task Is Not To Penetrate The Essence Of Things, The Meaning Of Which We Do Not Know Anyway, But Rather To Develop Concepts Which Allow Us To Talk In A Productive Way About Phenomena In Nature