Science Is More Than A Body Of

Better The Hard Truth, I Say, Than The Comforting Fantasy.

Writing A Novel Is Like Trying To Solve A Very Long Mathematical Equation. Changing Anything Can Change Everything Else.

That We Can Now Think Of No Mechanism For Astrology Is Relevant But Unconvincing. No Mechanism Was Known, For Example, For Continental Drift When It Was Proposed By Wegener. Nevertheless, We See That Wegener Was Right, And Those Who Objected On The Grounds Of Unavailable Mechanism Were Wrong.

We Wish To Find The Truth, No Matter Where It Lies. But To Find The Truth We Need Imagination And Skepticism Both. We Will Not Be Afraid To Speculate, But We Will Be Careful To Distinguish Speculation From Fact.

Since, In The Long Run, Every Planetary Society Will Be Endangered By Impacts From Space, Every Surviving Civilization Is Obliged To Become Spacefaring — Not Because Of Exploratory Or Romantic Zeal, But For The Most Practical Reason Imaginable: Staying Alive.