This Is The First Age That's Ever

All Human Plans [are] Subject To Ruthless Revision By Nature, Or Fate, Or Whatever One Preferred To Call The Powers Behind The Universe.

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.

. . . Moon-watcher Felt The First Faint Twinges Of A New And Potent Emotion. It Was A Vague And Diffuse Sense Of Envy--of Dissatisfaction With His Life. He Had No Idea Of Its Cause, Still Less Of Its Cure; But Discontent Had Come Into His Soul, And He Had Taken One Small Step Toward Humanity.

Absolutely No Religious Rites Of Any Kind, Relating To Any Religious Faith, Should Be Associated With My Funeral.

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.