Prediction Is Difficult, Especially The Future.

There Are Two Sorts Of Truth: Trivialities, Where Opposites Are Clearly Absurd, And Profound Truths, Recognised By The Fact That The Opposite Is Also A Profound Truth

The Great Extension Of Our Experience In Recent Years Has Brought Light To The Insufficiency Of Our Simple Mechanical Conceptions And, As A Consequence, Has Shaken The Foundation On Which The Customary Interpretation Of Observation Was Based.

Every Sentence I Utter Must Be Understood Not As An Affirmation, But As A Question.

A Physicist Visits A Colleague And Notices A Horseshoe Hanging On The Wall Above The Entrance. 'do You Really Believe That A Horseshoe Brings Luck?' He Asks. 'no,' Replies The Colleague, 'but I've Been Told That It Works Even If You Don't Believe In It.'

No Paradox, No Progress.