Open The Pod Bay Doors, Hal.

The Dinosaurs Disappeared Because They Could Not Adapt To Their Changing Environment. We Shall Disappear If We Cannot Adapt To An Environment That Now Contains Spaceships, Computers - And Thermonuclear Weapons.

Science Fiction Does Not Attempt To Predict. It Extrapolates. It Just Says, "what If?" Not What Will Be? Because You Can Never Predict What Will Happen, Particularly In Politics And Economics. You Can To Some Extent Predict In The Technological Sphere - Flying, Space Travel, But Even There We Missed Badly On Some Things, Like Computers. No One Imagined The Incredible Impact Of Computers, Even Though Robot Brains Of Various Kinds But The Idea That One Day Every House Would Have A Computer In Every Room And That One Day We'd Have Computers Built Into Our Clothing, Nobody Ever Thought Of That.

Good Morning, Dr. Chandra. This Is Hal. I Am Ready For My First Lesson.

Space Can Be Mapped And Crossed And Occupied Without Definable Limit; But It Can Never Be Conquered. When Our Race Has Reached Its Ultimate Achievements, And The Stars Themselves Are Scattered No More Widely Than The Seed Of Adam, Even Then We Shall Still Be Like Ants Crawling On The Face Of The Earth. The Ants Have Covered The World, But Have They Conquered It - For What Do Their Countless Colonies Know Of It, Or Of Each Other?

Using Material Ferried Up By Rockets, It Would Be Possible To Construct A "space Station" In ... Orbit. The Station Could Be Provided With Living Quarters, Laboratories And Everything Needed For The Comfort Of Its Crew, Who Would Be Relieved And Provisioned By A Regular Rocket Service. (1945)