A Problem Defined, Is A Problem Half

[max Planck] Was One Of The Finest People I Have Ever Known... But He Really Didn't Understand Physics, [because] During The Eclipse Of 1919 He Stayed Up All Night To See If It Would Confirm The Bending Of Light By The Gravitational Field. If He Had Really Understood [general Relativity], He Would Have Gone To Bed The Way I Did

Matter Is Real To My Senses, But They Aren't Trustworthy. If Galileo Or Copernicus Had Accepted What They Saw, They Would Never Have Discovered The Movement Of The Earth And Planets.

I Believe That Whatever We Do Or Live For Has Its Causality; It Is Good, However, That We Cannot See Through To It.

Intelligent Life On Other Planets? I'm Not Even Sure There Is On Earth!

In The Matter Of Physics, The First Lessons Should Contain Nothing But What Is Experimental And Interesting To See. A Pretty Experiment Is In Itself Often More Valuable Than Twenty Formulae Extracted From Our Minds.