Predition Is Risky, Especially Of The Future.

Those Who Are Not Shocked When They First Come Across Quantum Theory Cannot Possibly Have Understood It.

We Depend On Our Words... Our Task Is To Communicate Experience And Ideas To Others. We Must Strive Continually To Extend The Scope Of Our Description, But In Such A Way That Our Messages Do Not Thereby Lose Their Objective Or Unambiguous Character... We Are Suspended In Language In Such A Way That We Cannot Say What Is Up And What Is Down. The Word "reality" Is Also A Word, A Word Which We Must Learn To Use Correctly.

Truth Is Something That We Can Attempt To Doubt, And Then Perhaps, After Much Exertion, Discover That Part Of The Doubt Is Not Justified.

A Visitor To Niels Bohr's Country Cottage, Noticing A Horseshoe Hanging On The Wall, Teasing The Eminent Scientist About This Ancient Superstition. "can It Be True That You, Of All People, Believe It Will Bring You Luck?' 'of Course Not,' Replied Bohr, 'but I Understand It Brings You Luck Whether You Believe It Or Not.'

If An Idea Does Not Appear Bizarre, There Is No Hope For It.