Open The Pod Bay Doors, Hal.

Trying To Predict The Future Is A Discouraging And Hazardous Occupation. If By Some Miracle A Prophet Could Describe The Future Exactly As It Was Going To Take Place, His Predictions Would Sound So Absurd That People Everyone Would Laugh Him To Scorn. The Only Thing We Can Be Sure Of About The Future Is That It Will Be Absolutely Fantastic. So, If What I Say Now Seems To You To Be Very Reasonable, Then I Will Have Failed Completely. Only If What I Tell You Appears Absolutely Unbelievable Have We Any Chance Of Visualizing The Future As It Really Will Happen.

A Single Test Which Proves Some Piece Of Theory Wrong Is More Valuable Than A Hundred Tests Showing That Idea Might Be True.

Our Lifetime May Be The Last That Will Be Lived Out In A Technological Society.

I'm Sure The Universe Is Full Of Intelligent Life. It's Just Been Too Intelligent To Come Here.

One Of The Great Tragedies Of Mankind Is That Morality Has Been Hijacked By Religion. So Now People Assume That Religion And Morality Have A Necessary Connection. But The Basis Of Morality Is Really Very Simple And Doesn't Require Religion At All.