Boasts Are Wind And Deeds Are Hard.

It Was Childish To Feel Disappointed, But Childishness Comes Almost As Naturally To A Man As To A Child.

There Are No Happy Endings In History, Only Crisis Points That Pass.

Before Another Century Is Done It Will Be Hard For People To Imagine A Time When Humanity Was Confined To One World, And It Will Seem To Them Incredible That There Was Ever Anybody Who Doubted The Value Of Space And Wanted To Turn His Or Her Back On The Universe.

I Write For The Same Reason I Breathe - Because If I Didn't, I Would Die.

Science Fiction Writers Foresee The Inevitable, And Although Problems And Catastrophes May Be Inevitable, Solutions Are Not.