For Me A Simple Message, To Think

Weakness Of Attitude Becomes Weakness Of Character.

The True Measure Of A Man Is The Degree To Which He Has Managed To Subjugate His Ego.

However We Select From Nature A Complex [of Phenomena] Using The Criterion Of Simplicity, In No Case Will Its Theoretical Treatment Turn Out To Be Forever Appropriate (sufficient).... I Do Not Doubt That The Day Will Come When [general Relativity], Too, Will Have To Yield To Another One, For Reasons Which At Present We Do Not Yet Surmise. I Believe That This Process Of Deepening Theory Has No Limits.

Honestly, I Cannot Understand What People Mean When They Talk About The Freedom Of The Human Will. I Have A Feeling, For Instance, That I Will Something Or Other; But What Relation This Has With Freedom I Cannot Understand At All. I Feel That I Will To Light My Pipe And I Do It; But How Can I Connect This Up With The Idea Of Freedom? What Is Behind The Act Of Willing To Light The Pipe ? Another Act Of Willing?

People Are Like Bicycles. They Can Keep Their Balance Only As Long As They Keep Moving.