The Future Is Not To Be Forecast,

The Difference Between Machines And Human Beings Is That Human Beings Can Be Reproduced By Unskilled Labour.

New Ideas Pass Through Three Periods: 1) It Can't Be Done. 2) It Probably Can Be Done, But It's Not Worth Doing. 3) I Knew It Was A Good Idea All Along!

Even By The Twenty-second Century, No Way Had Yet Been Discovered Of Keeping Elderly And Conservative Scientists From Occupying Crucial Administrative Positions. Indeed, It Was Doubted If The Problem Ever Would Be Solved.

If An Elderly But Distinguished Scientist Says That Something Is Possible, He Is Almost Certainly Right; But If He Says That It Is Impossible, He Is Very Probably Wrong.

A Precondition For Being A Science Fiction Writer Other Than An Interest In The Future Is That, An Interest - At Least An Understanding Of Science, Not Necessarily A Science Degree But You Must Have A Feeling For The Science And Its Possibilities And Its Impossibilities, Otherwise You're Writing Fantasy. Now, Fantasy Is Also Fine, But There Is A Distinction, Although No One's Ever Been Able To Say Just Where The Dividing Lines Come.